Factor x^2-3x-18
Problem
Solution
Identify the coefficients of the quadratic expression in the form
a*x2+b*x+c wherea=1 b=−3 andc=−18 Find two numbers that multiply to the constant term
c=−18 and add to the linear coefficientb=−3 Determine the pair of numbers by testing factors of
−18 the numbers−6 and3 satisfy both conditions because(−6)*(3)=−18 and−6+3=−3 Write the factored form using these numbers as
(x+p)*(x+q)
Final Answer
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