Hi i need help on this equation.

5x^2-3x+9 when x= -11/5

5(-11/5)^2 - 3(-11/5) + 9

5(121/25) + 33/5 + 9

605/25 + 165/25 + 225/25

995/25

Omg thank u so much. I got the same answer u got earlier but in the answer sheet i guess it was wrong.

To find the value of the expression 5x^2 - 3x + 9 when x = -11/5, you simply need to substitute -11/5 in place of x in the equation and perform the arithmetic calculations.

Let's substitute x = -11/5 into the equation:

5(-11/5)^2 - 3(-11/5) + 9

First, simplify the exponent:

5(121/25) - 3(-11/5) + 9

Next, multiply:

605/25 + 33/5 + 9

To combine the fractions, find a common denominator:

605/25 + (33/5)(5/5) + 9(25/25)

Now, convert each fraction so they all have the same denominator:

605/25 + 165/25 + 225/25

Combine the numerators:

(605 + 165 + 225)/25

Simplify the numerator:

995/25

Finally, divide the numerator by the denominator:

995 ÷ 25 = 39.8

Therefore, when x = -11/5, the value of the expression 5x^2 - 3x + 9 is approximately equal to 39.8.