Answer
k=−1 1/4 or k=−7
Work Step by Step
If a product is 0, one of the factors must be 0.
Use the addition property of equality and the multiplication property of equality to solve for k.
4k+5=0 or k+7=0
4k+5−5=0−5 or k+7−7=0−7
4k=−5 or k=−7
4k÷4=−5÷4 or k=−7
k=−5/4 or k=−7
k=−1 1/4 or k=−7
