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Bogdan [553]
3 years ago
8

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

Mathematics
1 answer:
zheka24 [161]3 years ago
6 0

\bf{Hey\ there!}

\bf{Quadratic\ formula\ is:}\bf{x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}} \ or \ you\ could\ say\ ax^2+bx+c=0

\bf{\bullet\ First: subtract\ by\ 2x\ on\ your\ sides\ that\ you're\ working\ with}

\bf{Like:x^2+20-2x=2x-2x}

\bf{We\ get:x^2-2x+20=0}

\bf{\bullet \ a=1}\\ \bf{\bullet \ b=-2}\\ \bf{\bullet \ c=20}

\bf{x=\frac{-(-2)\pm\sqrt{(-2)^2-4(1)(20})}{2(1)}

\bf{(-2)^2-4(1)(20)=-76} \\ \\ \bf{2(1)=2}

\bold{-(-2)=-1(-2))=+2}

\bf{x=\frac{2\pm\sqrt{-76}}{2}}

\bf{Thus\ there\ is\ NO\ REAL\ SOLUTIONS}

\text{Good\ luck\ on\ your\ assignment\ and\ enjoy\ your\ day!}

\frak{LoveYourselfFirst:)}

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The number of goldfish in the pet store is equal to 60 fishes.

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<h3>What is ratio?</h3>

Ratio can be defined as an expression that is used to denote the proportion of two (2) or more quantities with respect to one another and the total quantities.

Mathematically, the number of goldfish in the pet store is given by this expression:

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G = 60 fishes.

Read more on ratio here: brainly.com/question/13513438

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