Question

factorise
pls give the answer fast​

Answer 1

Step-by-step explanation :

$a)2a^4-32b^4 \\\\ 2(a^4-16b^4) \\ 2[(a^2)^2-(4^2(b^2)^2] \\ 2[(a^2)^2-(4b^2)^2] \\ 2[a^2+4b^2][a^2-4b^2] \\ 2[a^2+4b^2][a^2-(2b)^2] \\ 2(a^2+4b^2)(a+2b)(a-2b) \\\\ FORMULA \ USED: \\ p^2-q^2=(p-q)(p+q)$

$b)5x^2+7x-6 \\\\ 5x^2+10x-3x-6 \\ 5x(x+2)-3(x+2)\\(x+2)(5x-3)$

$c)m^2-21m-100 \\\\ m^2+4m-25m-100\\m(m+4)-25(m+4) \\(m+4)(m-25)$

$d)a(5a+6b)-b(5a+6b) \\\\ (5a+6b)(a-b)$