Factor x^2-8x+7
Problem
Solution
Identify the coefficients of the quadratic expression in the form
a*x2+b*x+c wherea=1 b=−8 andc=7 Find two numbers that multiply to
c (7 and add tob (−8 .Determine the factors by testing pairs of integers that multiply to
7 The pairs are(1,7) and(−1,−7) Select the pair
(−1,−7) because−1+(−7)=−8 Write the expression in factored form
(x+p)*(x+q) using the identified numbers.
Final Answer
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