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Directions: Evaluate each expression using the given values: a = 2;b = 1; c= 4.


Show your solutions here:


1.a² + 2b

2. 5 b -2c

3.2a + 3b - 4c​


Sagot :

1.

[tex] {a}^{2} + 2b \\ {(2)}^{2} + 2(1) \\ 4 + 2 \\ = 6[/tex]

2.

[tex]5b - 2c \\ 5(1) - 2(4) \\ 5 - 8 \\ = - 3[/tex]

3.

[tex]2a + 3b - 4c \\ 2(2) + 3(1) - 4(4) \\ 4 + 3 - 16 \\ 7 - 16 \\ = - 9[/tex]

hope it helps