Question

3y = 72 +y²
Find the value of y​

Answer 1

it is a quadratic equation...

so

3y=72+y²

0=y²–3y+72

y²–3y+72= 0

using the above quadratic formula... where

x=y

a=1

b=(-3)

c=72

we get...

y=7 or 10

plz see attached photo...

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