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3 years ago

7

What are 2 numbers that when multiplied together you get 360 and when added together you get -96

1 answer:

Firlakuza [10]3 years ago

5 0

X + y = -96;
x * y = 360;

$t^{2} + 96t + 720 = 0$ ;
Δ = $96^{2} - 4 * 720 = 6336$ => sqrt(Δ) = 79.6;
=> x = ( - b + sqrt(Δ) ) / 2a => x = ( -96 + 79.6 ) / 2 ≈ - 8.2;
=> y = ( - b - sqrt(Δ) ) / 2a => x = ( -96 - 79.6 ) / 2 ≈ - 87.8;

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