Question

Q.1] Factorise following

${a}^{2} {b}^{2} - {b}^{2} + 2 {a}^{2} - 2$
a b b² + 2a²-2
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Answer 1

Question :-

Factorize :-

$\rm {a}^{2} {b}^{2} - {b}^{2} + 2 {a}^{2} - 2$

Answer :-

$\rm {a}^{2} {b}^{2} - {b}^{2} + 2 {a}^{2} - 2$

$\rm = b^2(a^2-1) + 2(a^2-1)$

$\rm = (b^2+2)(a^2-1)$

$\boxed{\rm {a}^{2} {b}^{2} - {b}^{2} + 2 {a}^{2} - 2 = (b^2+2)(a^2-1)}$

Answer 2

$\huge\rm\purple{\underline{\underline{\star{Solution:-}}}}$

a²b² - b² + 2 a² - 2a

b² ( a² -1 ) + 2 ( a² - 1)

( b²+ 2 ) ( a² - 1)