Question

find th roots of the equation 2x square plus sinus four equal to 0 by factirisarioj method​

Answer 1

Step-by-step explanation:

2x^2 + x - 4 = 0.

Multiplying both sides by 2.

or, 4x^2 + 2.x - 8 = 0.

or, (2x)^2 +2×(2x)×(1/2) + (1/2)^2 - 1/4 - 8 =0.

or, (2x+ 1/2)^2 = 33/4.

or, 2 .x +1/2 = +/- (√33)/2.

or, 2.x = ( - 1 +/- √33)/2.

or, x = (-1 +/- √33)/4.

Thus , the roots are (-1+√33)/4 and. (-1-√33)/4. Answer.

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