(x-3)/-6 = -2
Multiply all terms by -6 in order to eradicate the fraction remembering that a negative number divided or multiplied by negative number is equal to a positive number:
x-3 = 12
x = 12+3
Answer: x = 15
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x5 = x3 times x2. In this case x3 = 64 so x = cube root of 64 ie 4
Suppose x3-4x = 0. To solve, factor: x3-4x = x(x2-4) = x(x+2)(x-2) = 0 Now, a product equals 0 if and only one or more of the factors equals 0, so set each factor to 0 and solve. The roots are 0,-2 and +2.
2x2-y2
x3 6x2-x-30
x3-4=2 Add four to both sides. x3=6 Take the cu=6 be root of both sides. x is equal to the cube root of 6, or approximately 1.81712.