Question

7.From the adjoining figure, find the value of x and the measures of∠P,∠Qand∠R
pls

Answer 1

P = (2x+2)^2

Q = (2x-7)^2

R = x^2

Angle ( P+Q+R) = 180

=> 4x^2 + 4 + 8x + 4x^2 + 49 - 28x + x^2 = 180

=> 9x^2  - 20x + 53 = 180

=> 9x^2 - 20x = 127

=> 9x^2 - 20x - 127 = 0

=>  Find x and angles v.i.a QUADRATIC EQUATION