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insens350 [35]
3 years ago
8

Use the zero product property to find the solutions to the equation x^2 + x -30=12

Mathematics
2 answers:
Alla [95]3 years ago
6 0

Answer:

The solutions are x = -7, 6.

Step-by-step explanation:

To find the solutions, move everything to one side of the equation so the equation is equal to 0. Then factor. Set the factors equal to 0 and solve for x.

x^2 + x - 30 = 12\\x^2 + x -42=0\\(x+7)(x-6) = 0

x+7 = 0

x = -7

and

x-6 = 0

x = 6

The solutions are x = -7, 6.

Harrizon [31]3 years ago
5 0

Answer:

A on edge:)

Step-by-step explanation:

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This one is quite the deal, but we can begin by distributing the negative on the denominator and getting rid of the parenthesis:

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See how the denominator now is more a simplification of like terms, with this I mean that you operate the numbers with an "i" together and the ones that do not have an "i" together as well. Namely, the 7 and the -4, the -2i with the -9i.
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See, all I did there was multiply both numerator and denominator with (3+11i) so I could complete the difference of squares.
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I'll let you take it from here, all you have to do is simplify it further.
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