Is my answer correct. If not, what is the answer ? Thank you

P = 3

Q = -4

R = 22

Step-by-step explanation:

Expand both sides and compare coefficients.

5Px^2 -PQx +10x -2Q = 15x^2 + Rx +8

Compare coefficients of x^2

5P = 15  => P = 3

Compare constant terms

-2Q = 8

Q = -4

Compare coefficients of x

-PQ + 10 = R

-(3)(-4) + 10 = R

R = 10 + 12 =22

answer:

sometimes

*i think

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: