What is the value of the expression −3a+b2−10c
if a = 2, b = -4, and c = 7?
To find the value of the expression, we substitute the given values of a, b, and c into the expression:
-3(2) + (-4)^2 - 10(7)
= -6 + 16 - 70
= 10 - 70
= -60
Therefore, the value of the expression -3a + b^2 - 10c, if a = 2, b = -4, and c = 7, is -60.
To find the value of the expression −3a+b2−10c, you substitute the given values for a, b, and c into the expression and simplify.
Given values:
a = 2
b = -4
c = 7
Substituting the given values into the expression:
−3(2) + (-4)^2 − 10(7)
Simplifying:
−6 + 16 − 70
Combining like terms:
10 - 70
Calculating:
-60
Therefore, the value of the expression −3a+b2−10c, when a = 2, b = -4, and c = 7, is -60.