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What are the solutions to the equation 3x2 + 15x = 18?
A X=-3 and X =-2
B X = -6
and x = 1
C
X = 6 and x = 13
D X = 0 and x = 1

What are the solutions to the equation 3x2 15x 18 A X3 and X 2 B X 6 and x 1 C X 6 and x 13 D X 0 and x 1 class=

Respuesta :

subtomex0

[tex]3x {}^{2} + 15x = 18[/tex]

Divide the entire thing by 3

[tex]x {}^{2} + 5x = 6[/tex]

[tex]x {}^{2} + 5x - 6 = 0[/tex]

You can find the roots by using the quadratic formula or by using the form x²-Sx+P

[tex]let \: \alpha \: and \: \beta \: be \: the \: roots[/tex]

Two numbers whose sum is -5 and product is -6

-6 and +1

Your answer is B

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