Question

X2 + 20 = 40 .... What is X​

Answer 1

10

Explanation:

x2+20=40

20-40=x2

x2=20

20÷2=x

x=10

Answer 2

2x +20=40

=)2x=40-20

`= )x \: = (20)/(2)`

=) x =10