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sladkih [1.3K]
3 years ago
14

Simplify –(5x3 + x2) + 4(x3 – 3x2). Show your work.

Mathematics
2 answers:
SpyIntel [72]3 years ago
8 0

Answer:

Step-by-step explanation:

-(5x³+x²)+4(x³-3x²)

=-5x³-x²+4x³-12x²

=-x³-13x²

Stella [2.4K]3 years ago
4 0

Answer:

x^3 - 13x^2.

Step-by-step explanation:

–(5x3 + x2) + 4(x3 – 3x2)  Removing the brackets:-

= -5x^3 - x^2 + 4x^3 - 12x^2

= -5x^3 + 4x^3 - x^2 - 12x^2

= x^3 - 13x^2.

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The temperature T of an object in degrees Fahrenheit after t minutes is represented by the equation T(t) = 69e−0.0174t + 79. To
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Answer: T(90) = 93.413 F

Step-by-step explanation:

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T(90) = 69e−1.566 + 79

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Step-by-step explanation:

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