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3 years ago

1) Is y=-3 a solution to the equation-3x^2=-27

Mathematics

1 answer:

sergey [27]3 years ago

8 0

Answer:

1)Yes

2)No

Step-by-step explanation:

1) 3x^2 = -27

3 (-3)^2 = -27

Once you substitute your value in for x, you can follow the rule <u>PEMDAS</u> to solve the equation.

3 (-9) = -27

-27 =-27

2) 10 - 5x = y

In an ordered pair, the first number is x and the second number is y.

10 - 5 (-4) = 10

10 - 20 = 10

-10 = 10

-10 ≠ 10

PEMDAS: A rule that states solving an equation by the order of operations:

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Exponents

Multiplication

Division

Addition

Subtraction

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