SOLUTION: Write the equation 7 x(x - 15) = - 252 in quadratic form and then solve it by factoring

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Question 147609: Write the equation 7 x(x - 15) = - 252 in quadratic form and then solve it by factoring
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
7x%28x-15%29=-252 Start with the given expression.


7x%5E2-105x=-252 Distribute.


7x%5E2-105x%2B252=0 Add 252 to both sides.


7%28x-12%29%28x-3%29=0 Factor the left side



Now set each factor equal to zero:
x-12=0 or x-3=0

x=12 or x=3 Now solve for x in each case


So our answers are

x=12 or x=3