Answer:
1. x² + 3y
= (2)² + 3(2)
= 4+6
= 10
2. 3x + 2y
=3(1) + 2(4)
= 3 + 8
= 11
3. 5x - 3y
a. 5 (2) - 3(1)
= 10 - 3
= 7
b. 5 ( 1) - 3(2)
= 5 - 6
= - 1
c. 5(5) - 3(9)
= 25 - 27
= - 2
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Answers & Comments
Answer:
1. x² + 3y
= (2)² + 3(2)
= 4+6
= 10
2. 3x + 2y
=3(1) + 2(4)
= 3 + 8
= 11
3. 5x - 3y
a. 5 (2) - 3(1)
= 10 - 3
= 7
b. 5 ( 1) - 3(2)
= 5 - 6
= - 1
c. 5(5) - 3(9)
= 25 - 27
= - 2