Question

How do you simplify (5x+4)(5x+4)(5x−4)(5x−4)?

Answer 1

hey mate...


(5x+4)^2 (5x-4)^2

using the properties

(a+b)^2 and (a-b) ^2


(5x^2+4^2+40x)(5x^2+4^2-40x)

(5x^2+16+40x)(5x^2+16-40x)

Answer 2

Question : To simplify :

(5x + 4)(5x + 4)(5x - 4)(5x - 4)

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

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

$( {5x - 4)}^{2} = ({5x)}^{2} - 2 \times 5x \times4 + {4}^{2}$

Multiplying both the answers :

We get :

${25x}^{2} + 40x + 16 \times {25x}^{2} - 40 + 16$

Simplify the answer and you will get the final answer.