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zmey [24]
3 years ago
8

2(y - 2) = 20" alt="5y( y + 3) - 2(y - 2) = 20" align="absmiddle" class="latex-formula">
​
Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
5 0

Answer:

Step-by-step explanation:

5y^2+15y-2y+4=20

5y^2-13y+4=20

5y^2-13y+4-20=0

5y^2-13y-16=0

This equation is in standard form: ax^2+bx+c=0. Substitute 5 for a, 13 for b, and −16 for c in the quadratic formula.

Alecsey [184]3 years ago
4 0

Answer:

y =  \frac{ - 13 -  \sqrt{489} }{10}

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