Question

WhIich of the following mathematical expressions is equivalent to the verbal expression "A number, x, squared is 39 more than the product of 10 and x"?

A. 2x=39+10x

B. 2x=39x+10x

C. x²=39-10x

D. x²=39+x∧10

E. x²=39+10x The answer

Why is the answer E

Answer 1

E. x^2 = 39 + 10x

Explanation:

It helps to do one piece of the sentence at a time.

"A number, x, squared is 39 more than the product of 10 and x"

x

"A number, x, squared is 39 more than the product of 10 and x"

x^2 =

"A number, x, squared is 39 more than the product of 10 and x"

x^2 = 39 +

"A number, x, squared is 39 more than the product of 10 and x"

x^2 = 39 + 10x

Answer: E. x^2 = 39 + 10x

Answer 2

There are several reasons:

1. Number x means unknown integer.

2.Squared means"Raised by the second power".

3.Is means "equals"

4.More is very transparent,it means "+"

5.Product is "times"

6. X is again unknown number.

The answer is indeed:

`x {}^(2) = 39 + 10x`

Good luck.

Intelligent Muslim,from Uzbekistan.