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2 years ago

In the expression (21 – 3) X (7 + 2) = (12 - 4), what operation should you perform last? Why?

Mathematics

2 answers:

meriva2 years ago

5 0

Answer:

Substraction

Step-by-step explanation:

(21-3)x(7+2)=(12-4)

1. 18 x 9 = 12-4

2. 162-8 = 8-8

3. 162-8 = 154

lys-0071 [83]2 years ago

4 0

Answer:

The solution is False because there is no solution to the equation

Step-by-step explanation:

(21-3)×(7+12)= (12-4)

First, remove the brackets

18×19=8

Then, Multiply

342=8

SOLUTION is False

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2 years ago

A(3-x)=-2x+B if x=2 How do I find A and B what are the answers

irina1246 [14]

Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Read 2 more answers

Factor completely 15x^5 + 12x^4-24x^3-3x^2

diamong [38]

Answer:

3x^2 (5x^3 + 4x^2 - 8x - 1)

Step-by-step explanation:

The given expression is 15x^5 + 12x^4-24x^3-3x^2

Here we have to find the GCF of all the above terms.

The GCF is 3x^2, let's take out 3x^2 and write the remaining terms in the parenthesis.

15x^5 + 12x^4-24x^3-3x^2

=3x^2 (5x^3 + 4x^2 - 8x - 1)

Therefore, the factors are 3x^2 and (5x^3 + 4x^2 -8x -1).

15x^5 + 12x^4-24x^3-3x^2 = 3x^2 (5x^3 + 4x^2 -8x -1)

Thank you.

7 0

3 years ago