Given f(x)=2x^2+9x+k, and the remainder when f(x) is divided x+7 is 32, then what is the value of k?
1 answer:
Set up either long division or synthetic div. I'd do the latter. Your divisor for synth. div. should be -7. __________ Then -7 / 2 9 k -14 +35 -------------------- 2 -5 k+35 Rem is 32; Let 32 = k + 5 and solve for k: k = -3. Let's check that. Is k correct? Then -7 / 2 9 -3 -14 +35 -------------------- 2 -5 -3+35 = 32 Since the rem is 32, we are correct; k = -3.
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Step-by-step explanation:
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