Question

solve x2-2x-4=0 by formula method​

Answer 1

Factoring x2-2x-4

The first term is, x2 its coefficient is 1 .

The middle term is, -2x its coefficient is -2 .

The last term, "the constant", is -4

Step-1 : Multiply the coefficient of the first term by the constant 1 • -4 = -4

Step-2 : Find two factors of -4 whose sum equals the coefficient of the middle term, which is -2 .

-4 + 1 = -3

-2 + 2 = 0

-1 + 4 = 3

Answer 2

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x will be. 2-√8. and. 2+√8.....