Solve.

Mathematics

2 answers:

Oduvanchick [21]3 years ago

5 0

Answer:

Step-by-step explanation:

There are several approach to solving a quadratic equation; factorization, completing the square, the use of 'the almighty formula etc. Though i didn't see the steps you followed in solving, but from your answer, it is obvious you made good attempt but something is missing, your answer should be (5+√57)/2 or (5-√57)/2

Bas_tet [7]3 years ago

5 0

Answer:

x=5/2+square root (57)/2 or x=5/2-square root (57)/2

Step-by-step explanation:

-b+-square root (b^2-4ac)/2a
-(-5)+-square root [(-5)^2-4(1)(-8)]/2(1)
5+-square root (25+32)/2
5+-square root (57)/2
5+square root (57)/2 or 5-square root (57)/2

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