Solve by Factoring 2x^2+5x-3=0
Problem
Solution
Identify the coefficients of the quadratic equation in the form
a*x2+b*x+c=0 wherea=2 b=5 andc=−3 Find two numbers that multiply to
a⋅c=−6 and add tob=5 These numbers are6 and−1 Rewrite the middle term
5*x using the two numbers found:2*x2+6*x−x−3=0 Factor by grouping by taking the greatest common factor out of the first two terms and the last two terms:
2*x*(x+3)−1*(x+3)=0 Factor out the common binomial
(x+3) to get(2*x−1)*(x+3)=0 Apply the zero product property by setting each factor equal to zero:
2*x−1=0 orx+3=0 Solve each linear equation for
x x=1/2 andx=−3
Final Answer
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