What are the solutions to the quadratic equation 4x2 + 28x = 0?
2 answers:
Answer:
x = {-7, 0}
Step-by-step explanation:
4x^2 + 28x = 0
Divide both sides by 4
x^2 + 7x = 0
Factor out x
x(x + 7) = 0
---------------------------
From the zero product rule
x = 0
and
x + 7 = 0
subtract 7 from both sides
x = -7
x = {-7, 0}
Answer:
x is 0 or -7
Step-by-step explanation:
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