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Answered

B. Direction: Evaluate the following expressions.
5. Evaluate (–4a2) for a = –3.
6. Evaluate 6 x2y for x = 5 and y = 2.
7. Evaluate xy – z if x = –3, y = 4, and z = 5
8. Evaluate a(4 – b) if a = 2 and b=1/2 . May sumagot po ng ayos follow ko po​

Sagot :

DEGUZMANELYNET1224GO

Answer:

5. 24

6.120

7. -17

8. 7

Step-by-step explanation:

5. -4(-3)2

=12×2

=24

6. 6(5)2(2)

=30×4

=120

7. (-3)(4)-(5)

=-12-5

=-17

8. 2(4-1/2)

= 2×7/2

= 7

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