Answer:
66
Step-by-step explanation:
I did it on edgeniuty
its 61.4x+15
4
x
+
23
an EQUILATERAL triangle!!
4a^2 + 12ab + 9b^2.
Use the identity (a + b)(a + b) = a^2 + 2ab + b^2 :
So
(2a + 3b)(2a + 3b)
= (2a)^2 + 2*(2a)(3b) + (3b)^2
= 4a^2 + 12ab + 9b^2.
