Question

What is the value of x if x * x + 2x -35 = 0?

Answer 1

I think the answer is -7 and 5 .

you multiply the first two x’s . that leaves you with x^2 + 2x - 35 = 0 . now you just do simple factoring to get you with (x+7)(x-5) . next , you set those to zero like this : x+7=0 and x-5=0. then you subtract 7 on one , and add 5 to the other to get : x=-7 and x=5 :)