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Illusion [34]
3 years ago
14

Please solve by factoring 5x^2+7x-66=0...use a comma to seperate answers.

Mathematics
1 answer:
never [62]3 years ago
7 0
5x^2+7x-66=0 \\ \\5x^2+7x -22x+ 22x-66=0 \\ \\ 5x^2-15x+ 22x-66=0 \\ \\5x(x-3)+22(x-3)=0 \\ \\ (x-3)(5x+22)=0\\ \\x-3 = 0 \ \ or \ \ 5x+22 =0 \\ \\ x=3 \ \ or \ \ 5x=-22 \ \ /:5 \\ \\x=3 \ \ or \ \  x=-\frac{22}{5} \\ \\x=3 \ \ or \ \  x=-4\frac{2}{5}
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Using the concept of y-intercept, it is found that the response that is not correct is given by:

B) Replace x with -x.

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It is the value of the function when x = 0, hence it is the point (0, f(0)).

In this problem, the function is:

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More can be learned about y-intercepts at brainly.com/question/24737967

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3 years ago
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Step-by-step explanation:

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