Question

1.If z=4 evaluate (5z)2"
2. If x = -5evaluate 2x2
3. If x=3 and y=-4 evaluate 4xy





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Answer 1

Step-by-step explanation:

1. (5×4)2

=20×2

=40

2. 2×-5×2

= -10×2

= -20

3. 4×3×-4

= 12×-4

= -48

Answer 2

Answer:

1. (5*4)2=20*2=40

2. (2*-5*2)= -20

3. (4*3*4)=48