3 years ago

Solve the following quadratic equation for all values of x in simplest form.

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

8 0

Answer:

x = ± 1

Step-by-step explanation:

Given

3(x² - 4) + 7 = - 2 ( subtract 7 from both sides )

3(x² - 4) = - 9 ( divide both sides by 3 )

x² - 4 = - 3 ( add 4 to both sides )

x² = 1 ( take the square root of both sides )

x² = ± $\sqrt{1}$ = ± 1

Thus

x = - 1, x = 1

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