Factor x^2+x-42
Problem
Solution
Identify the coefficients of the quadratic expression in the form
a*x2+b*x+c wherea=1 b=1 andc=−42 Find two numbers that multiply to
c (which is−42 and add tob (which is1 .Determine the pair of numbers by testing factors of
−42 The numbers7 and−6 satisfy both conditions because7⋅(−6)=−42 and7 + (-6) = 1$.Write the factored form using these numbers as
(x+p)*(x+q)
Final Answer
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