Question

In parallelogram ABCD, angle A is x(x +3) and angle B is 140°. Find the values of x.
my guess is its 7 and 8,let me know if its right

Answer 1

angle b is 140 degrees
and angle A is x(x+3)

Answer 2

Angles A and B are supplementary because they are same-side interior angles formed by two parallel lines cut by a transversal.
x(x+3) + 140 = 180
x^2 + 3x - 40 = 0
(x - 5) (x + 8) = 0
Zero Product Property
x = 5 or x = -8

Answer 3

iyeah i got that one thank you