Solve the equation.
-x(x - 3)= 70
A)7, 10
B)7, -10
C)-7, 10
D)0, 3

Name: Solve the equation. -x(x - 3)= 70 A)7, 10 B)7, -10 C)-7, 10 D)0, 3
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Question

Quizplus · Accepted Answer

Expanding the equation, we get x^2 - 3x = 70.
Bringing everything to one side, we get x^2 - 3x - 70 = 0.
Using factoring or the quadratic formula, we can solve for x and get x = -7 or x = 10.
But since x(x-3) is positive when x > 3 or x < 0, we can eliminate the positive solution of x = 10.
Therefore, the solution is x = -7 or Choice C.

Solve the Equation. -X(x - 3)= 70