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02-01-2019
Mathematics

contestada

evaluate the expression for the given value of the variable (-x+3) + (4- 2x square) + 3x; x= -5

Respuesta :

jonathankchau1 jonathankchau1

02-01-2019

For this you just substitute x for -5, so...

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

= (--5 + 3) + (4 - 2(-5)^2) + 3(-5)

= (5 + 3) + (4 - 2(25)) + -15

= 8 + (4 - 50) -15

= 8 + -46 - 15

= 8 - 46 - 15

= -53

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