Question

EXPAND THE POLONOMIAL (5a+1/2b)^2 HELPPP ASAP

Answer 1

Answer:

25$a^{2}$+5ab+$\frac{b^{2} }{4}$

Step-by-step explanation:

$(5a+\frac{1}{2} b)^{2}$

1. First, write out the expression without the square

$(5a+\frac{1}{2} b)(5a+\frac{1}{2} b)$

2. Then use foil to multiply:

5a*5a+5a*$\frac{1}{2}b$+$\frac{1}{2}b$*5a+$\frac{1}{2}b$*$\frac{1}{2}b$

=25$a^{2}$+5ab+$\frac{b^{2} }{4}$

3. That is your answer.