Question

Find the following by using Identity-1:-(2x+5)to the power of​

Answer 1

-1=2x+5

2x+5=-1

2x=-1-5

2x=1+5

2x=6

x=6/2

x=3

Answer 2

Answer:

Step-by-step explanation:

$(a+b^{2})= a^{2}+2ab+b^{2}\\\\(2x+5^{2} =2x^{2}+2*2x*5^{2}\\\ =2x^{2}+20x+25\\ \\=4x^{2}+20x+25$