Question

could someone please help me? will fan

What is the solution to the equation?
2x^2 + 4 = 20
choose all answers that are correct

a. http://static.k12.com/bank_packages/files/media/ca5c9f77f83ce10e572005bc240460ff.png

b. http://static.k12.com/bank_packages/files/media/35141185ea55d4a7b180ab7523865860.png

c. 2 square root of 2

d. http://static.k12.com/bank_packages/files/media/6b8c58b4148a3335de0b0d990069f072.png

Answer 1

a and c

Answer 2

2x^2=16
X^2=8
X= square root of 8
As 8 is 4x2
The square root of 8 is the square root of 4 times the square root of 2
X=2 time the square root of s
Latter c

Answer 3

okay, thank you guys for your help!