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48 questions · timed · auto-graded

Question 71 Mark
Add the expression : $3 n^2+5 m n-6 m^2, \quad 2 m^2-3 m n-4 n^2, \quad 2 m n-3 m^2-7 n^2$
Answer
$-7 m^2+4 m n-8 n^2$
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Question 131 Mark
Identify the expression is polynomial. If so, write their degree : $a b^2-\frac{7}{a^2}+5 b^2+6$
Answer
No.
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Question 141 Mark
Identify the expression is polynomial. If so, write their degree : $4 x^5-7 x^5 y+3 x y^4+8 y^5$
Answer
Yes, 6
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Question 151 Mark
Identify the expression is polynomial. If so, write their degree : $6 p^4-p^3 q^2+p q^3+q^4$
Answer
Yes, 5
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Question 161 Mark
Identify the expression is polynomial. If so, write their degree : $9 x^2 y^2-3 x y^2+5 x^2 y-6 x$
Answer
Yes, 4
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Question 191 Mark
Generate algebraic expression : The product of three numbers $a, b$ and $c$ subtracted from the sum of $x$ and $y$.
Answer
self
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Question 201 Mark
Generate algebraic expression : Five times $m$ subtracted from the sum of $p$ and thrice $x$.
Answer
$(p+3 x)-5 m$
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Question 211 Mark
Generate algebraic expression : From a rod $(p+q)$ units in length, $n$ equal pieces are cut. Find the length of each piece.
Answer
$\frac{(p+q)}{n}$
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Question 221 Mark
Generate algebraic expression : The number to be added to $x+y$ to make it equal to $p$.
Answer
$p-(x+y)$
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Question 241 Mark
Generate algebraic expression : One-third of $x$ multiplied by the sum of $p$ and $q$.
Answer
$\frac{1}{3} x(p+q)$
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Question 261 Mark
Generate algebraic expression : The quotient of $x$ by 8 is multiplied by $y$.
Answer
$\frac{x}{8} \times y$
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Question 281 Mark
Identify term : $a b c, a b^2 c, a c b^2, c^2 a b, b^2 a c, a^2 b c, c a b^2$
Answer
$a b^2 c, a c b^2, b^2 a c, c a b^2$
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Question 351 Mark
Write down the numerical of literal coefficient of the monomial : $-\frac{2 x^2}{y z}$
Answer
$-2, \frac{x^2}{y z}$
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Question 361 Mark
Write down the numerical of literal coefficient of the monomial : $\frac{2 a b}{c}$
Answer
$2, \frac{a b}{c}$
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Question 371 Mark
Write down the numerical of literal coefficient of the monomial : $\frac{3}{a^2}$
Answer
$3, \frac{1}{a^2}$
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Question 381 Mark
Write down the numerical of literal coefficient of the monomial : $-\frac{3 a b^2}{2}$
Answer
$-\frac{3}{2}, a b^2$
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Question 391 Mark
Write down the numerical of literal coefficient of the monomial : $\frac{5}{9} x y z^2$
Answer
$\frac{5}{9}, x y z^2$
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Question 411 Mark
Identify monomial, binomial and trinomial from the algebraic expression : $a x^2+b x \times y^2$
Answer
Binomial
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Question 431 Mark
Identify monomial, binomial and trinomial from the algebraic expression : $\frac{3 a+2 b-5 c}{7}$
Answer
Trinomial
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Question 451 Mark
Identify monomial, binomial and trinomial from the algebraic expression : $5+3 x^3 y^3 z^2$
Answer
Binomial
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Question 461 Mark
Identify monomial, binomial and trinomial from the algebraic expression : $7 p^2 \times a^3 b$
Answer
Monomial
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[1 Mark Question Answer] - MATHS STD 7 Questions - Vidyadip