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3 years ago

Expression 3x²+4x-5x=-2

Mathematics

1 answer:

Ierofanga [76]3 years ago

5 0

Answer:

Step-by-step explanation:

I'm assuming that you want me to express x as -2.

3(-2)^2+4(2)-5

3*4+8-5

12+8-5

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Sam has 19 1/2 meters of rope to make jump ropes. He needs 3 1/4 meters for each jump rope.

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4 years ago

1/a^2-3a+2 + 1/a^2-5a+6 + 2/a^2-8a+15

Inessa [10]

Answer:

$\frac{4+16a^3+23a^3}{a^2}$

Step-by-step explanation:

Given

$1/a^2-3a+2 + 1/a^2-5a+6 + 2/a^2-8a+15$

Required

Simplify

$1/a^2-3a+2 + 1/a^2-5a+6 + 2/a^2-8a+15$

Collect Like Terms

$1/a^2 + 1/a^2 + 2/a^2-3a-5a-8a+2+6+15$

$1/a^2 + 1/a^2 + 2/a^2-16a+23$

Add Fractions:

$\frac{1+1+2}{a^2} + 16a + 23$

$\frac{4}{a^2} + 16a + 23$

This can be further expressed as:

$\frac{4+16a^3+23a^3}{a^2}$

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3 years ago

What is a set of three numbers that have a gcf of 13?

ipn [44]

There are an infinite number of correct answers to that question.
Here are 5 answers ... one for each point:

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13, 39, 52

13, 39, 130

65, 91, 117

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3 years ago

Question 1 (1 point)

aleksklad [387]

Question 1: 6 3/4 so option b

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3 years ago

Expression 3x²+4x-5x=-2​

Expression 3x²+4x-5x=-2