3 years ago

22 Evaluate the expression for a = –1 and b = 5. Show your work. 5a – 7b + b2

Mathematics

2 answers:

artcher [175]3 years ago

6 0

5*-1= -5

-5- 7b + b^2

7*5= 35

-5-35 + b^2

5*5= 25

-5- 35 +25

-5 - 35= -40

-40 + 25= -15

-15

blagie [28]3 years ago

5 0

(5x-1) - (7x5) + (5x2)
= -5 - 35 + 10
= -5 - 45
= -50

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