katrinlelyushk katrinlelyushk

04-10-2018
Mathematics

contestada

Find the value of the expression 2x^4–5x^3+x^2+3x+2 for x=−5

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meghanbf meghanbf

04-10-2018

Plug in -5 for all values of x. Make sure that when x is raised to a power, you keep the -5 in parenthesis. Follow all rules of PEMDAS.

2(-5)^4-5(-5)^3+(-5)^2+3(-5)+2
2(625)-5(-125)+25-15+2
1250+625+12
1887 is the answer

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