Math, asked by sharmavasu0404, 2 months ago

(i) (2x + 5)² + (2x - 5)(2x - 5) please give fast answer​

Answers

Answered by chandan454380
1

Answer:

(2x + 5)^2+(2x - 5)(2x - 5)=8x^2+50

Step-by-step explanation:

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

We can use the identity,

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

So,

         a=2x\\ \\ b=5

So,

              (2x + 5)^2+(2x - 5)^2\\ \\ 2((2x)^{2} +(5)^2)\\ \\ 2(4x^2+25)\\ \\ 8x^2+50

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