Question

5+4x³-2z² if x= -1 and z= -2​

Answer 1

Answer:

5-4-8

-7

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Answer 2

Step-by-step explanation:

the solution is -7

any negative number raised to an even power is positive

example : (-1)^4 = +1 or (-1)^888 = +1

and a negative number raised to an odd power is negative

example : (-1)^3= -1 or (-1)^999 = -1