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Choose the expression that represents a quadratic expression.

a. 9x - 2

b. 5x^2 + 9x - 1

c. -2x^3 + 8x^2 - 7x + 1

d. x^4 - 12x^3 + 8x^2 - 7x + 1

User Yerpy
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1 Answer

4 votes

Answer:

b. 5x^2 + 9x - 1

Explanation:

A quadratic expression had the highest power of the variable at 2

x^2

b. 5x^2 + 9x - 1

a has the highest power as x

c and d goes higher than x^2

User Keneth Adrian
by
8.5k points

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