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Sholpan [36]
3 years ago
6

Which of the following is a factor of f(x) = 3x3 + 8x2 − 87x + 28? (5 points)

Mathematics
1 answer:
N76 [4]3 years ago
5 0

Answer

(x - 4)


Step by step explanation

To find the factors, plug in the x values in the given equation and see which value of x makes the equation equal to zero.

Here (x - 4) is a factor.

Therefore, x = 4

when we plug in x = 4 in the given expression, we get zero.

Let's check it out.

3(4)^3 + 8 (4)^2 - 87(4) + 28

192 + 128 - 348 + 28

348 - 348

0

The answer is (x - 4)

Thank you.

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#12

In the given figure

∵ LJ // WK

∵ LP is a transversal

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∵ The corresponding angles are equal in measures

∴ m∠1 = m∠KWP

∴ ∠1 ≅ ∠KWP ⇒ (1)

∵ WK // AP

∵ WP is a transversal

∵ ∠KWP and ∠WPA are interior alternate angles

∵ The interior alternate angles are equal in measures

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→ From (1) and (2)

∵ ∠1 and ∠WPA are congruent to ∠KWP

∴ ∠1 and ∠WPA are congruent

∴ ∠1 ≅ ∠WPA ⇒ (3)

∵ WP // AG

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∴ ∠WPA ≅ ∠2 ⇒ (4)

→ From (3) and (4)

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∴ ∠1 and ∠2 are congruent

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