Mathematics: What is m²- 5m -14 = 0 in quadratic formula? ?

What is m²- 5m -14 = 0 in quadratic formula? ?

Ответ:

cheycheybabygirl01

05.01.2022

For ax²+bx+c=0
$x= \frac{-b+/- \sqrt{b^2-4ac} }{2a}$

given
1m²-5m-14=0
a=1
b=-5
c=-14

$x= \frac{-(-5)+/- \sqrt{(-5)^2-4(1)(-14)} }{2(1)}$
$x= \frac{5+/- \sqrt{25+56} }{}$
$x= \frac{5+/- \sqrt{81} }{2}$
$x= \frac{5+/- 9 }{2}$
$x= \frac{5+ 9 }{2}$ or $x= \frac{5- 9 }{2}$
$x= \frac{14 }{2}$ or $x= \frac{-4}{2}$
x=7 or -2

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Ответ:

ana1810

05.01.2022

Mathematics

The quadratic formula is $x= \frac{-b± \sqrt{b^{2}-4ac } }{2a}$ so your equation is:
a=1
b=-5
c=-14
$x= \frac{-(-5)± \sqrt{ (-5)^{2}-4(1)(-14) } }{2(1)}$
All the problem asks for is the equation but if necessary you could solve it, just don't forget the plus or minus sign.

If you have any questions, feel free to ask.

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Ответ:

sarinawhitaker

19.03.2020

Mathematics

Step-by-step explanation:

ASAP need this urgently pls

As you can see I tried enough times to give up, so forget that it's th

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What is m²- 5m -14 = 0 in quadratic formula? ?

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