1. if x =-3 calculate the value of 2x squared +x 2. solve 3x-3=x+5 3. solve 5x+4=3

asked Apr 4, 2016 222k views

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1. if x =-3 calculate the value of 2x squared +x

2. solve 3x-3=x+5

3. solve 5x+4=3

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2*-3 is -6. then squared it is +36 and finally +-3 would get you to +33.

Leiflundgren answered Apr 6, 2016

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2x² = -3² x 2 = 9 x 2 = 18
18 + -3 = 15 (as adding a negative means subtracting)
2x² + x = 15

Mike Jarvis answered Apr 10, 2016

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