RANOMARYJOY70GO
Answered

1. Evaluate the following expressions: (2 points each)
1. -2(6a+10a-2a), if a=2
2. r + 2r + 6, if x = -3
3. pn+(n+m), if m=1, n=4&p=-3
4. 6xy-6 if x=1 and y=-3
4
5. (a-2)2 + b2 +7, if a=5 and b=-2​

Sagot :

ERUSAMAGO
First step is to substitute the given variables to its value,then apply PEMDAS rule
1.) -2(6(2)+10(2)-2(2)
=-2(12+20-4)
=-2(28)
=-56

2.) -3 + 2(-3) +6
= -3 + (-6) + 6
= -3 + 0
=-3

3.) (-3)(4)+(4+(-3))
=-12+(1)
=-11

4.) 6(1)(-3)-6
=-18-6
=-24

5.) (5-2)2+(2)2+7
=(3)2 + 4 +7
=6 + 11
=17



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