Question

factor completely: 5x^5-40x^2

Answer 1

what can u take out common from hose 2 terms ?

Answer 2

\(\large 5x^2(x^3)-5(8)x^2\)
now can u think what is common ?

Answer 3

@Mberdeja501

Answer 4

doesn't it give you 5x^2(x^3-8) @hartnn?

Answer 5

thats correct!
now u can write 8 as \(2^3\)
u know the formula of
\(a^3-b^3\) ??

Answer 6

yes let me try this

Answer 7

so i get 5x^2(x-2)(x^2+2x+4) right @hartnn ?

Answer 8

yabsolutely !
good work :)

Answer 9

cool thanks! Your help was great :D

Answer 10

now can u factorise x^2+2x+4 further ?

Answer 11

no?

Answer 12

but you can factorize the (x-2) right?