4.5 is the answer for you problem
Answer: BXC =70°
Step-by-step explanation:
XBC= isosceles so XBC=XCB
XBC=55° (isosceles triangle)
BXC+XBC+XCB=180° (angles in a triangle =180°)
BXC=180°- (55°+55°)
BXC=180°-110°
BXC=70°
First, you factor and simplify (respectively) the numerator and denominator. Your equation becomes:
Notice, there is a (x + 7) on both the top and the bottom. Because of this, they cancel each other out. What is left is your answer:
I SAY IT THE SECOND OPTION