Mathematics: One number is 5 more than another number. find these numbers if their product is -3

One number is 5 more than another number. find

Ответ:

ninja12302

10.01.2022

Numbers are x and y

x is 5 more than y
x=5+y

product is -3
xy=-3

solve

sub 5+y for x since x=5+y
(5+y)y=-3
5y+y^2=-3
add 3 to both sides
y^2+5y+3=0
use quadratic formula where
ay^2+by+c=0
y= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$

a=1
b=5
c=3

y= $\frac{-(5)+/- \sqrt{5^2-4(1)(3)} }{2(1)}$
y= $\frac{-5+/- \sqrt{25-12} }{2}$
y= $\frac{-5+/- \sqrt{13} }{2}$
y= $\frac{-5+ \sqrt{13} }{2}$ or $\frac{-5- \sqrt{13} }{2}$

the second number is 5 more or 10/2 more
add 10/2 to each
x= $\frac{5+ \sqrt{13} }{2}$ or $\frac{5- \sqrt{13} }{2}$

the numbers are

$\frac{-5+ \sqrt{13} }{2}$ and $\frac{5+ \sqrt{13} }{2}$ or
$\frac{-5- \sqrt{13} }{2}$ and $\frac{5- \sqrt{13} }{2}$

aprox
the numbers are
-0.697224 and 5.967224 or
-4.302775 and 0.697224

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Ответ:

davisnaziyahovz5sk

03.08.2021

Mathematics

This is the answer of the question

Please help me answer these e questions pleasesssss

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One number is 5 more than another number. find these numbers if their product is -3

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