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Gemiola [76]
3 years ago
15

For y = 3x - 2x2 +5x3, show how to find the value for y, when x = 3. Show your work

Mathematics
2 answers:
Ugo [173]3 years ago
6 0
Y= 3(3)–2(3)2+5(3)3
y= 9–2*3*2+5*9
y=9–12+5*9
y=9–12+45
y=42
madreJ [45]3 years ago
4 0

Answer:

6

Step-by-step explanation:

y = 3x - 2x² + 5×3

<em>when</em><em> </em>x = 3

y = 3(3) - 2(3)² + 15

y = 9 - 18 + 15

y = 15 + 9 - 15

y = 24 - 18

y = 6

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