Question

Evaluate : (2a-7b-c)2​

Answer 1

Step-by-step explanation:

Evaluate a2b for a = –2, b = 3, c = –4, and d = 4.

To find my answer, I just plug in the given values, being careful to use parentheses, particularly around the "minus" signs. Especially when I'm just starting out, drawing the parentheses first may be helpful:

a2 b

( )2 ( )

(–2)2 (3)

(4)(3)