Answers
Step-by-step explanation:
Factoring 9x2-6x-26 =0
The first term is, 9x2 its coefficient is 9 .
The middle term is, -6x its coefficient is -6 .
The last term, "the constant", is -26
Step-1 : Multiply the coefficient of the first term by the constant 9 • -26 = -234
Step-2 : Find two factors of -234 whose sum equals the coefficient of the middle term, which is -6 .
-234 + 1 = -233
-117 + 2 = -115
-78 + 3 = -75
-39 + 6 = -33
-26 + 9 = -17
-18 + 13 = -5
-13 + 18 = 5
-9 + 26 = 17
-6 + 39 = 33
-3 + 78 = 75
-2 + 117 = 115
-1 + 234 = 233