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Marysya12 [62]
3 years ago
8

5x^2+11x-12=0 plz help

Mathematics
1 answer:
Murrr4er [49]3 years ago
8 0

here's the solution,

=》

5{x}^{2}  + 11x  - 12 = 0

=》

5 {x}^{2}  + 15x  - 4x - 12 = 0

=》

5x(x + 3) - 4(x + 3) = 0

=》

(5x - 4)(x + 3) = 0

=》

x =  \frac{4}{5}  \: or \: x =  - 3

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docker41 [41]
<span>The <u>correct answers</u> are:

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Explanation<span>:

We can first write this in standard form, ax</span></span>²<span><span>+bx+c=0. To do this, we will add 11x to both sides:
x</span></span>²<span><span>+24+11x=-11x+11x
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Now we can factor this. Look for factors of c, 24, that sum to b, 11. Factors of 24 are:
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2 and 12 (sum 14)
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Using the zero product property, we know that in order to have a product of 0, one or both of the factors must be 0. This means we have:
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Solving the second equation:
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