Please please please please please help me i will give brainliest

Mathematics

1 answer:

alukav5142 [94]3 years ago

7 0

2x^2 - 4 = 68
add 4 to both sides
2x^2 = 72
divide both sides by 2
x^2 = 36
find the square root of each sides
x = 6, -6

ANSWER: the positive value of x is 6

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