Question

why are 1/4 and -1 zeros ok polynomial p(x) =4x²+3x-1​

Answer 1

Step-by-step explanation:

$p( \frac{1}{4} ) = 4 \times \frac{1}{4} + 3 \times \frac{1}{4} - 1$

$= 1 + \frac{3}{4} - 1$

$= \frac{3}{4}$

$p( - 1) = 4 \times { - 1}^{2} + 3 \times - 1 - 1$

$= 4 \times 1 - 3 - 1$

$= 4 - 3 - 1$

$= 1 - 1$

$= 0$

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