3 years ago

(70 + a) ÷ 10 is expression or equation

Mathematics

1 answer:

hoa [83]3 years ago

7 0

Answer: Expression

Step-by-step explanation:

An equation is when something is equal to something for example if you had (70+a)=10 that would be an equation. I believe so.

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2 years ago

Which of the following is a quadratic equation that has the roots x = 2 and x = −7? (4 points)

crimeas [40]

Answer:

x^2 + 5x - 14

Step-by-step explanation:

We can assume that if there is 2 options for x, this is a quadratic equation that equals 0.

Therefore, we can put this into brackets as one bracket must equal 0.

(x - 2) (x + 7)

After this we expand, which is a process easier to search up

The answer is:

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We can simplify this to:

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x^2 represents x squared in case you were wondering

Therefore, the answer is:

x^2 + 5x - 14

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