Question

(2x+5)^2 solve this by identity 1​

Answer 1

Step-by-step explanation:

(a+b)=a²+b²+2ab

(2x+5)²=(2x)²+5²+2.2x.5

=4x²+20x+25

Answer 2

Answer:

4x^2+20x+25

Step-by-step explanation:

Using the identity, (a+b)^2=a^2+2ab+b^2

(2x+5)^2= (2x)^2+2×5×2x+5^2

=4x^2+20x+25

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