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2 years ago

Question 5 Which expression is equivalent to 5(6+4)

Mathematics

1 answer:

Marianna [84]2 years ago

3 0

PEMDAS
6 + 4 = 10
5(10) = 5*10 = 50

50 is your answer

I hope this helps :)

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(x+3)(3x² - 5x - 10) multiply polynomial

brilliants [131]

Answer:

$\boxed{\sf{3x^3+4x^2-25x-30}}$

Step-by-step explanation:

$\underline{\text{SOLUTION:}}$

To isolate the term of x from one side of the equation, you must multiply by a polynomial.

$\underline{\text{GIVEN:}}$

$:\Longrightarrow: \sf{(x+3)(3x^2 - 5x - 10)}$

You have to solve with parentheses first.

$:\Longrightarrow \sf{x\cdot \:3x^2+x\left(-5x\right)+x\left(-10\right)+3\cdot \:3x^2+3\left(-5x\right)+3\left(-10\right)}$

Solve.

$\sf{x*3x=3x^3}$

x(-5x)=-5x²

$\sf{x(-10)=-10x}$

3*3x²=9x²

3(-5x)=-15x

3(-10)=-30

Then, rewrite the problem down.

$\sf{3x^3-5x^2-10x+9x^2-15x-30}$

Combine like terms.

$\Longrightarrow: \sf{3x^3-5x^2+9x^2-10x-15x-30}$

Add/subtract the numbers from left to right.

-5x²+9x²=4x²

$\Longrightarrow: \sf{3x^3+4x^2-10x-15x-30}$

Solve.

$\sf{-10x-15x=-25x}$

Then rewrite the problem.

$\Longrightarrow: \boxed{\sf{3x^3+4x^2-25x-30}}$

Therefore, the correct answer is 3x³+4x²-25x-30.

I hope this helps! Let me know if you have any questions.

6 0

2 years ago

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The ratios in an equivalent ratio table are 3.12, 4.16, and

OleMash [197]

Answer:

maybe 6.24

sorry if wrong

Step-by-step explanation:

5 0

3 years ago

Is Brainly most scanning for anyone else right now? And how do I fix it I have deadlines coming up

Studentka2010 [4]

Answer:

what-

Step-by-step explanation:

8 0

2 years ago

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Please help :). i need to get a 100 on this.

scoundrel [369]

The. correct. answer is c

7 0

3 years ago

How many solutions are there to the equation below?

elena55 [62]

Answer:

A) 0 (no solutions)

Step-by-step explanation:

Solve the equation:

3x - 10(x+2) = 13 - 7x

3x - 10x -20 = 13 - 7x

-7x - 20 = 13 - 7x

-20 = 13

Since both sides are clearly not equal to each other, no solution can satisfy both sides to be equal to each other. So A is correct.

5 0

2 years ago

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