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3 years ago

Solve the given equation by using the quadratic formula: 2x^2-3x-4=0

2 answers:

7 0

Let's solve your equation step-by-step.2x2−3x−4=0Step 1: Use quadratic formula with a=2, b=-3, c=-4.x=−b±√b2−4ac2ax=−(−3)±√(−3)2−4(2)(−4)2(2)x=3±√414x=34+14√41 or x=34+−14√41

lara31 [8.8K]3 years ago

4 0

Thy answer you are looking for is:

$X = \frac{3± \sqrt{41} }{4}$

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julsineya [31]

let

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we know that

$660=y+12x$ --------> equation $1$

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Multiply by $-1$ equation $1$

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Adds equation $2$ and equation $3$

$810=y+15x\\-660=-y-12x\\---------\\ 810-660=15x-12x\\ 3x=150\\ x=50\ dollars$

Find the value of y

$660=y+12x\\ 660=y+12*50\\ y=660-600\\ y=60\ dollars$

therefore

the answer is

the administration fee is equal to $60\ dollars$

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andrezito [222]

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Step-by-step explanation:

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