Question 563 MarksFactorise : $x^2-y^2-4 x z+4 z^2$Answer$(x-2 z+y)(x-2 z-y)$View full question & answer→
Question 593 MarksFactorise : $a^2(b+c)-(b+c)^3$Answer$(b+c)(a+b+c)(a-b-c)$View full question & answer→
Question 613 MarksFactorise : $50 a^2-2(b-c)^2$Answer$2(5 a+b-c)(5 a-b+c)$View full question & answer→
Question 623 MarksFactorise : $3-12(a-b)^2$Answer$3[(1+2 a-2 b)(1-2 a+2 b)]$View full question & answer→
Question 633 MarksFactorise : $9(b+2 a)^2-4 a^2$Answer$(3 b+8 a)(3 b+4 a)$View full question & answer→
Question 663 MarksFactorise $\left(x^4+x^2 y^2+y^4\right)$[Hint. Given Exp. $=\left(x^4+2 x^2 y^2+y^4\right)-\left(x^2 y^2\right)=\left(x^2+y^2\right)^2-(x y)^2$.Answer$\left(x^2+y^2+x y\right)\left(x^2+y^2-x y\right)$View full question & answer→
Question 673 MarksExpress $\left(x^2+8 x-15\right)\left(x^2-8 x-15\right)$ as the difference of two squares.Answer$\left(x^2-15\right)^2-(8 x)^2$View full question & answer→