the angle between the known sides is not right angle
Answer:
2x^2-6x-4
Step-by-step explanation:
(7x2 + 4x - 9)
-(5x2 + 10x - 5)
=
7x^2-5x^2=2x^2
4x-10x=-6x
-9-(-5)=-4
thus, your answer is 2x^2-6x-4
This question is a little complicated so I will try my best to answer this question.
First do process of elimination which means think of the wrong answers and at
last you will get a correct answer which is 784 according to formula it is the
correct answer.
