Question

5x*2-6x-2 factorise by quadratic formula method​

Answer 1

Answer:

Step by step solution :

Step 1 :

Equation at the end of step 1 :

(5x2 - 6x) - 2 = 0

Step 2 :

Trying to factor by splitting the middle term

2.1 Factoring 5x2-6x-2

The first term is, 5x2 its coefficient is 5 .

The middle term is, -6x its coefficient is -6 .

The last term, "the constant", is -2

Step-1 : Multiply the coefficient of the first term by the constant 5 • -2 = -10

Step-2 : Find two factors of -10 whose sum equals the coefficient of the middle term, which is -6 .

-10 + 1 = -9

-5 + 2 = -3

-2 + 5 = 3

-1 + 10 = 9

Observation : No two such factors can be found