Gujarat BoardEnglish MediumSTD 7MATHSAlgebraic Expressions1 Mark
MCQ
Find the thirdterm $4a^4 + 5a^3 - a^2 + 6:$
A
$4a^4$
B
$5a^3$
✓
$-a^2$
D
$6$
✓
Answer
Correct option: C.
$-a^2$
In polynomial, the term with highest exponent is the first term. Write terms in decreasing order of their exponents. Third term in the order is the third term of the polynomial. Given polynomial is $4a^4 + 5a^3 - a^2 + 6$ Highest exponent of a is $4,$ then $3,$ then $2$ and then $0 \ i.e.$ the term $-a^2$ is the third in the list. the third term $= -a^2$
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