F(x) = 2x2 + 1, what is f(x) when x = 3?
0 1
O 7
O 13
O 19

f(x) = 19

Step-by-step explanation:

f(x) = 2x2 + 1

f(x) = 2(3)2 + 1

f(x) = 2(9) + 1

f(x) = 18 + 1

f(x) = 19

Follow PEMDAS from left to right

P.E.M.D.A.S:

Parenthesis

Exponents

Multiply

Divide

Add

Subtract

37/3

step-by-step explanation:

step 1: simplify both sides of the equation.

7x+8(x+

1

4

)=3(6x−9)−8

7x+(8)(x)+(8)(

1

4

)=(3)(6x)+(3)(−9)+−8(distribute)

7x+8x+2=18x+−27+−8

(7x+8x)+(2)=(18x)+(−27+−8)(combine like terms)

15x+2=18x+−35

15x+2=18x−35

tep 2: subtract 18x from both sides.

15x+2−18x=18x−35−18x

−3x+2=−35

step 3: subtract 2 from both sides.

−3x+2−2=−35−2

−3x=−37

step 4: divide both sides by -3.

−3x

−3

=

−37

−3

x=

37

3