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Diano4ka-milaya [45]
3 years ago
10

Solve for x using zeros of function method-x³+2x²+x-2=0​

Mathematics
1 answer:
Naya [18.7K]3 years ago
3 0

Answer:

x = - 1, x = 1, x = 2

Step-by-step explanation:

The coefficients of the polynomial sum to zero, that is

- 1 + 2 + 1 - 2 = 0

This indicates that x = 1 is a zero

let x = - 1, then

- (- 1)³ + 2(- 1)² + (- 1) - 2 = 1 + 2 - 1 - 2 = 0

Thus x = - 1 is a zero

let x = 2

- (2)³ + 2(2)² + 2 - 2 = - 8 + 8 + 2 - 2 = 0

Thus x = 2 is a zero

The 3 zeros are x = - 1, x = 1, x = 2

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<em>The ordered pair is (4,6)</em>

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Answer:

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3 years ago
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3 years ago
3.6 (5 x 4) ÷ 3 + 5.0
Yuliya22 [10]

3.6 (5 x 4)  ÷ 3 + 5.0

use the PEMDAS rule

P - parentheses

E - exponents

M - multiplication

D - division

A - addition

S - subtraction

3.6 (5 x 4)  ÷ 3 + 5.0

= 3.6 (20)  ÷ 3 + 5.0

= 72  ÷ 3 + 5.0

= 24 + 5.0

=29

so the final answer would be 29!!

8 0
3 years ago
Read 2 more answers
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