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Finding zeros of polynomials practice
Finding zeros of polynomials · 1–12
Find all the zeros.
1.p(x) = x3 + 4x2 − 11x − 30One zero is −2.
2.p(x) = x3 + 4x2 − 15x − 18One zero is 3.
3.p(x) = x3 − 13x − 12One zero is −1.
4.p(x) = x3 + 4x2 − 27x − 90One zero is −3.
5.p(x) = x3 − 2x2 − 29x + 30One zero is −5.
6.p(x) = x3 − 7x − 6One zero is −1.
7.p(x) = x3 + 14x2 + 63x + 90One zero is −5.
8.p(x) = x3 + 7x2 + 16x + 12One zero is −2.
9.p(x) = x3 + 8x2 + 21x + 18One zero is −2.
10.p(x) = x3 − 5x2 − 36x + 180One zero is 5.
11.p(x) = x3 − 7x2 + 11x − 5One zero is 5.
12.p(x) = x3 + 11x2 + 38x + 40One zero is −5.
Answer key — Finding zeros of polynomials practice
Finding zeros of polynomials
1.x = 3 or x = −2 or x = −5
2.x = 3 or x = −1 or x = −6
3.x = 4 or x = −1 or x = −3
4.x = 5 or x = −3 or x = −6
5.x = 6 or x = 1 or x = −5
6.x = 3 or x = −1 or x = −2
7.x = −3 or x = −5 or x = −6
10.x = 6 or x = 5 or x = −6
12.x = −2 or x = −4 or x = −5
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