Complete the square x^2+2x-7=17

A) x=-1, x=3

B) x=5, x=-4

C) x=-1, x=4

D) x=-6, x=4

Problem solving exercise 3d+d-7=25/4

If the percent error is 10% and the actual amount is 350, what is the range of possible values?

Let f (x) = sqrt x-5. Find f^-1

Solving for x and y in a linear equation (x, y) -11x-10y=17 5x-7y=50

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