Question

expand : (2x + ½x )²​

Answer 1

Answer:

${4x }^{2} + \frac{x2}{4} + 2$

Step-by-step explanation:

a = 2x @ b = 1/2 x

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

(2x +1/2x)^2= (2x)^2 + (1/2x)^2 + 2(2x)(1/2x)

= 4x^2 +1/4x^2 + 2