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enyata [817]
3 years ago
5

Evaluate the following expression when a = -3, b = 2,c=5, and d= -4. 5ac - 26

Mathematics
1 answer:
SpyIntel [72]3 years ago
5 0

Answer:

-101

Step-by-step explanation:

5ac - 26

5 × -3 × 5 - 26 (since a = -3 & c = 5, you substitute them)

-15 × 5 - 26

- 75 - 26

- 101

I hope this is helpful.

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(5x4 + 5x3 + 4x - 9) + (2x4 + 7x2 + 2x + 14)
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Answer:

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Step-by-step explanation:

The given expression is

(5x4 + 5x3 + 4x - 9) + (2x4 + 7x2 + 2x + 14)

The first step is to open the brackets by multiplying each term inside each bracket by the term outside each bracket. Since the term outside each bracket is 1, the expression becomes

5x⁴ + 5x³ + 4x - 9 + 2x⁴ + 7x² + 2x + 14

We would collect like terms by combining each term with the same exponent or raised to the same power. The term would be arranged in decreasing order of the exponents. It becomes

5x⁴ + 2x⁴ + 5x³ + 7x² + 4x + 2x - 9 + 14

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Answer:

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f(4) = what?

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