If x= 5 and y = 2, work out the value of a) 3x + y
b) 2x2
c) (x - y)2
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Answer:
17, 50, 9
Step-by-step explanation:
Hello
We already know the values of x and y, 5 and 2.
All we have to do to figure out a, b, and c, is to plug in those known values.
a) 3x + y
Let's plug in x and y as 5 and 2
3(5) + 2
15 + 2
17
b) 2x^2
2(5)^2
2(25)
50
c) (x - y)^2
(5 - 2)^2
3^2
9
Answer:
A) 3(5)+2= 17
B) 2(5)2= 50
C) (5-2)2= 9
Step-by-step explanation: