Download App

Framing Algebraic Expressions (Including Evaluation) — MATHS STD 6 — Question

ICSE BoardEnglish MediumSTD 6MATHSFraming Algebraic Expressions (Including Evaluation)3 Marks
Question
From the formula $B = 2a^2 – b^2,$ calculate the value of $B$ when $a = 3$ and $b = − 1.$
✓

Answer

$B = 2a^2 – b^2$
Put the values of $a = 3$ and $b = − 1$ in above equation
$B = 2 \times (3)^2 – (− 1)^2$
$B = 18 – 1$
$B = 17$
Value of $B$ is $= 17$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[3 marks sum]" from Framing Algebraic Expressions (Including Evaluation)→Framing Algebraic Expressions (Including Evaluation) — all question types→MATHS STD 6 question papers→ICSE Board STD 6 question papers→ICSE Board question paper generator→

Similar questions

60% of 100°
→
The weekly expenses of a boy have increased from ₹ 1,500 to ₹ 2,250. Find the ratio of:
(i) increase in expenses to original expenses.
(ii) original expenses to increased expenses.
(iii) increased expenses to increase in expenses.
→
Of $\frac{17}{20}$ and $\frac{21}{25}$, which is greater and by how much?
→
Find the H.C.F. of the following number use long division method : 112, 140, 168
→
The salary of a man is $₹ 7,200$ per month, which is now increased by $8\%.$ Find his new salary per month.
→
18 bags of rice having equal weights weigh 297 kg. How much will 22 such bags weigh?
→
If $x=2, y=5$ and $z=4$, find the value of the following : $\frac{x^2 y^x}{x}$
→
The price of a bat was ₹ 650. Now, its price has been increased by 6%. What is the increased price of the bat?
→
Use a method of your own choice to find the H.C.F. of 66, 33 and 132.
→
By making a suitable chart, compare 6983245 and 6893254
→