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CANARIOJOSEPHIN
Answered

evaluate the following algebraic expression if x=3,y=4,a=-5 and b=-7
1.x-y-a-b
2.abxy
3.axy - aby
4.(ab)4
5.4x - 5y​

Sagot :

LHELHENGIN

Answer:

x=3 y=4 a= -5 and b= -7

1.x-y-a-b

3-4-(-5)-(-7)

-1+5+7

11

2.abxy

(-5)(-7)(3)(4)

(35)(12)

420

3.axy - aby

(-5)(3)(4)-(-5)(-7)(4)

-60-140

-200

4.(ab)4

[(-5)(-7)]4

(35)4

140

5.4x - 5y

4(3)-5(4)

12-20

-8

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