What is the value of this expression when a = 4, b= -5, and c= -7?
a + 2bc
3a ?

1) -66

2)

Step-by-step explanation:

Given:

a=4

b=-5

c=-7

=a+2bc

=4+2*-5*7

=4+(-10*7)

=4-70

=-66

=3a

=3(4)

=12

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