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Mathematics
Mike Summers
7 July, 16:05
Solve each equation. 5x2 - 55 = 90
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Drake Arroyo
7 July, 16:50
0
x = ± sqrt (29)
Step-by-step explanation:
5x^2 - 55 = 90
Add 55 to each side
5x^2 - 55+55 = 90+55
5x^2 = 145
Divide each side by 5
5/5x^2 = 145/5
x^2 = 29
Take the square root of each side
sqrt (x^2) = ± sqrt (29)
x = ± sqrt (29)
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