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Finding zeros of polynomials practice
Finding zeros of polynomials · 1–12
Find all the zeros.
1.p(x) = x3 + 2x2 − 5x − 6One zero is −3.
2.p(x) = x3 − 9x2 + 15x + 25One zero is 5.
3.p(x) = x3 − 3x2 − 34x + 120One zero is 4.
4.p(x) = x3 − 28x + 48One zero is 2.
5.p(x) = x3 − 16xOne zero is 4.
6.p(x) = x3 + 15x2 + 74x + 120One zero is −4.
7.p(x) = x3 + 7x2 + 8x − 16One zero is −4.
8.p(x) = x3 + 7x2 + 4x − 12One zero is 1.
9.p(x) = x3 − 2x2 − 23x + 60One zero is 3.
10.p(x) = x3 − 11x2 + 38x − 40One zero is 4.
11.p(x) = x3 + 5x2 + 2x − 8One zero is −2.
12.p(x) = x3 + 5x2 − 12x − 36One zero is 3.
Answer key — Finding zeros of polynomials practice
Finding zeros of polynomials
1.x = 2 or x = −1 or x = −3
3.x = 5 or x = 4 or x = −6
4.x = 4 or x = 2 or x = −6
5.x = 4 or x = 0 or x = −4
6.x = −4 or x = −5 or x = −6
8.x = 1 or x = −2 or x = −6
9.x = 4 or x = 3 or x = −5
10.x = 5 or x = 4 or x = 2
11.x = 1 or x = −2 or x = −4
12.x = 3 or x = −2 or x = −6
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