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Find the value of y is x = -3 y = 4x² + 2x - 9

Find the value of y is x = -3 y = 4x² + 2x - 9
asked 232k views
4 votes
Find the value of y is x = -3

y = 4x² + 2x - 9

asked
User Jake Worth
by
7.5k points

1 Answer

5 votes
Determine the sign multiply

4x(-3)^2+2x(-3)-9

Evaluate

4x3^2-6-9

Multiply

4x9-6-9

Calculate

36-6-9

Answer : Y = 21 or 21
answered
User Ritesh Karwa
by
7.9k points
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