Solve the equation.
-$5 \mathrm{x}(\mathrm{x}+3)=(4 \mathrm{x}-5)(\mathrm{x}+3)$
A) $-3,-5$
B) -5
C) 3,5
D) 5

Name: Solve the equation. -$5 \mathrm{x}(\mathrm{x}+3)=(4 \mathrm{x}-5)(\mathrm{x}+3)$ A) $-3,-5$ B) -5 C) 3,5 D) 5
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Question

Quizplus · Accepted Answer

Expanding both sides of the equation gives $5x^2 + 15x = 4x^2 + 12x - 5x - 15$. Simplifying, we get $x^2 + 3x + 15 = 0$. Factoring or using the quadratic formula, we find the roots to be $x = -3$ and $x = -5$.

Solve the Equation 5x(x+3)=(4x−5)(x+3)5 \mathrm{x}(\mathrm{x}+3)=(4 \mathrm{x}-5)(\mathrm{x}+3)5x(x+3)=(4x−5)(x+3) A) −3,−5-3,-5−3,−5 B) -5 C) 3,5 D) 5

Solve the Equation $5 \mathrm{x}(\mathrm{x}+3)=(4 \mathrm{x}-5)(\mathrm{x}+3)$ A) $-3,-5$ B) -5
C) 3,5
D) 5