Step-by-step explanation:
(3x² + 4x - 8) - (-2x² + 4x + 2)
[3 - (-2) = 5] , [ 4 - 4 = 0] , [ (-8) - 2 = -10]
5x² + 0x - 10
(or)
5x² - 10
Theorem:
The measure of an exterior angle of a triangle is equal to the sum of the measures of its remote interior angles.
Angle 4 is an exterior angle of the triangle.
Angles 1 and 2 are the remote interior angles of angle 4.
m<4 = m<1 + m<2
m<4 = 30 deg + 110 deg
m<4 = 140 deg
Round up to 1, 400 then times it by 5
1,400 • 5 = 7,000
So no, it it's not reasonable.
Commonsense you do math in your mind
