Select the correct answer. Write an expression to represent the product of 6 and the square of a number plus 15.
In your expression, what is the value of the coefficient?
О. 6
O. 15
O. 2
O. 1

Option A is the correct option.

Step-by-step explanation:

Let the number be 'x'

Let's create an expression:

The number or alphabet by which variable is multiplied is called the coefficient of the term.

In our case, The value of coefficient is 6

Hope I helped !

Best regards!!

6

Step-by-step explanation:

Let thee number be x

Square of number: x²

Product of 6 and square of number = 6 *x² = 6x²

Expression: 6x² + 15

Coefficient of x² = 6

19

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15