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1/3 x ^ 2 - 7 = - 4
1/3 x ^ 2 = 7 - 4 (Add 7 to both sides)
1/3 x ^ 2 = 3
x2 = 3 * 3 (multiply both sides by 3)
x2 = 9
x = 3
CHECK
1/3 (3) ^ 2 - 7 = - 4 1/3 (9) - 7 = -4 3-7 = -4 -4=-4
1x3=3 to the power 2= 9-7=2
I think that’s it.
Is that 1/3x to the 2nd power - 7 = -4 ?
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