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3 years ago

This is Algebra 2. help me

Mathematics

1 answer:

gladu [14]3 years ago

3 0

(4x^2-25)/(2x-5)=14
we hates fractions so m ultiply both sides by (2x-5)
4x^2-25=14(2x-5)
4x^2-25=28x-70
add 70 to both sides
4x^2+45=28x
subtract 28x fromoth sides
4x^2-28x+45=0
use quadratic formula which is
if you have
ax^2+bx+c=0 then
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a} 
$
a=4
b=-28
c=45
subsitute
x= $\frac{-(-28)+/- \sqrt{(-28)^{2}-4(4)(45)} }{2(4)} 
$
x= $\frac{28+/- \sqrt{784-720} }{8} 
$
x= $\frac{28+/- 8}{8} 
$
x= $\frac{5}{2} 
$ or $\frac{9}{2} 
$
if we were to put 5/2 for x, the deonomentor would be equal to zero, so it cannot be used

answer is
x=9/2

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3 years ago

Solve (x – 3)2 = 49. Select the values of x. –46 -4 10 52

sergiy2304 [10]

After using the algebraic equation, the required value of x = 55/2.

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1 year ago

A software designer is mapping the streets for a new racing game. all of the streets are depicted as either perpendicular or par

ElenaW [278]

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2 years ago

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