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Class 10 Mathematics Polynomials Polynomials in one variableEasyLevel 48

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If (p(x)=2x^2-8), what is the value of (p(2))?

Answer and explanation

Correct answer: 0

Substitute (x=2) in the polynomial: (p(2)=2(2)^2-8=2\times4-8=8-8=0). Therefore, the correct answer is 0. The value 8 may result from forgetting to subtract the constant term (8). Exam tip: evaluate powers first, then multiplication, and finally addition or subtraction.

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Polynomials Substitution Polynomial Value Easy

Frequently asked questions

What is the correct answer to this question?

0

Why is this the correct answer?

Substitute (x=2) in the polynomial: (p(2)=2(2)^2-8=2\times4-8=8-8=0). Therefore, the correct answer is 0. The value 8 may result from forgetting to subtract the constant term (8). Exam tip: evaluate powers first, then multiplication, and finally addition or subtraction.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Polynomials. Topic: Polynomials in one variable.

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