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3 years ago

Simultaneous Equation (x+5)(x+2)=65 , xy=24 Plssss help me ✌

Mathematics

1 answer:

Ne4ueva [31]3 years ago

7 0

Answer:

(-11.70, -2.05), (4.70, 5.10)

Step-by-step explanation:

Given equations

(x+5)(x+2)=65
xy=24

Solving the first equation for x:

(x+5)(x+2)=65
x^2 + 7x + 10 = 65
x^2 + 7x - 55 = 0
x = (-7 ± √(49+4*55))/2
x = -11.70, x = 4.70

Then solving for y:

y= 24/(-11.7) = -2.05
y = 24/4.7 = 5.10

Solution set:

(-11.70, -2.05), (4.70, 5.10)

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