Question

Solve for x

2^2+4^2+2x=100

Answer 1

2 to the second power is 4

4 to the second power is 16

4+16 = 20

100- 20 = 80

80 divided by 2 is 40

Ans: 40

Tip: If your not sure whether the answer is right or not, plug it back into the equation

Answer 2

2 x 2 = 4 + 4 x 4 = 16

4 + 16

= 20 + 2x = 100

(x = 40)

2 x 40 = 80 + 20 = 100.