Answer:
x=3
Step-by-step explanation:
2x+3=9 (subtract 3 from both sides)
2x=6 (divide both sides by 2)
x=3
3.4, 13, 18.4, 44.3, 82.4, 49.3 :) hope this helped
Answer:
4a^2+4ab+b^2
Step-by-step explanation:
To find the square we multiply the expression with itself
(2a+b)×(2a+b) = 4a^2+4ab+b^2