Download App

Algebraic Expressions, Identities and Factorisation — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSAlgebraic Expressions, Identities and Factorisation2 Marks
Question
Multiply the following: $(a^2- b^2), (a^2+ b^2)$
✓

Answer

$(a^2- b^2), (a^2+ b^2)$
$ \therefore\left(a^2-b^2\right)\left(a^2+b^2\right) $
$ =a^2\left(a^2+b^2\right)-b^2\left(a^2+b^2\right) $
$ =a^4+a^2 b^2-b^2 a^2-b^4 $
$ =? 4-b^4 $

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 "2 Marks Questions" from Algebraic Expressions, Identities and Factorisation→Algebraic Expressions, Identities and Factorisation — all question types→MATHS STD 8 question papers→Gujarat Board STD 8 question papers→Gujarat Board question paper generator→

Similar questions

Simplify and express the result in power notation with positive exponent: ${( - 3)^4} \times {\left( {\frac{5}{3}} \right)^4}$
→
If a deposit of $Rs 2,000$ earns an interest of $Rs. 500$ in $3$ years, how much interest would a deposit of $Rs 36,000$ earn in $3$ years with the same rate of simple interest?
→
Write the following numbers in the usual form: $3 × 10^{-8}$
→
Represent the following numbers on the number line. $2\frac{2}{5}$
→
Find the volume of a cylinder, if the diameter $(d)$ of its base and its altitude $(h)$ are: $d = 21\ cm, h = 10\ cm$
→
Making use of the cube root table, find the cube root $8.6$
→
Express as a power of a rational number with negative exponent. $\bigg(\Big(\frac{-3}{2}\Big)^{-2}\bigg)^{-3}$
→
Express the number $3.52$ $\times$ $10^5$ in the usual form.
→
Evalute: ${(7.8)^2- (2.2)^2}$
→
Fun Activity
Take a packet which has different colours of toffees/candies in it. Count the number of toffees of each colour and fill the data in the table given below. Also draw a pie chart to depict the data.
Colour of candiesNumberFractionFraction of $360^{\circ}$
Red
Green
→