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If (x=1), what is the value of (4x^3-6x^2+5x-7)?

Answer and explanation

Correct answer: -4

Substitute x=1. Since \(1^3=1\) and \(1^2=1\), \(4(1)^3-6(1)^2+5(1)-7=4-6+5-7=-4\). Therefore, -4 is correct. The nearby distractor -3 can result from an error in addition or subtraction. Exam tip: after substitution, write the sign of every term before simplifying.

Related tags

PolynomialsAlgebraic ExpressionsSubstitutionEvaluation Of ExpressionsClass 9 MathematicsIntroduction To PolynomialsMathematicsClass 9 Mcq

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