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tekilochka [14]
2 years ago
13

Solve the equation. Check your solutions when necessary.2x² − 7x = 4

Mathematics
1 answer:
prisoha [69]2 years ago
5 0

Answer:

x= -1/2 = -0.500

x=4

Step-by-step explanation:

2x^2-7x-4=0

2x^2-8x+1x-4=0

2x(x-4)+1(x-4)=0

(2x+1)(x-4)=0

2x+1=0...2x= -1.. x= -1/2         x-4=0 .. x=4

checking the solution

2(-1/2)^2-7(-1/2)=4.....  4=4

2(4)^2-7(4)=4....... 4=4

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bulgar [2K]

In this question, you're simplifying the "fraction".

<em>Simplify:</em>

8x² / 6x^5

<em>First, simplify the 8 and the 6 by dividing by 2</em>

4x² / 3x^5

<em>Now simplify the exponents:</em>

The exponents is equivalent to: x² - x^5

x² - x^5 = -x²

Since it's a negative, it would stay in the bottom of the fraction, or the denominator.

4 / 3x²

Answer:

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2 years ago
what is the equation of the line that passes through (-9,12) and is perpendicular to the line whose equation is y=1/3x+6
BabaBlast [244]
Y=kx+b
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Answer:

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