THE PRODUCT (x-10)(x+2) is equivalent to
(1)x^2-20.....(2)2x-8..(3)x^2-8x+20
(4)x^2-8x+20...Explain
(1)x^2-20.....(2)2x-8..(3)x^2-8x+20
(4)x^2-8x+20...Explain