Question

(4x^2+5x). (4x^2-5x) using Identity​

Answer 1

Answer:

Hope it's correct thank you

Answer 2

Given,

$(4x^{2}+5x)(4x^{2}-5x)$

Here we have to using identity is $(a+b)(a-b)=a^{2}-b^{2}$

The given equation is in the form of above identity

Here,

$a=4x^{2}$

$b=5x$

We have to substitute above values in the above identity to find the value of equation.

$(a+b)(a-b)=a^{2}-b^{2}$

$(4x^{2} +5x)(4x^{2} -5x)=(4x^{2} )^{2}-(5x)^{2}$

$= 16x^{4}-25x^{2}$

Therefore, the answer is $16x^{4}-25x^{2}$.