Question

Helppppppppppppppppppp

Answer 1

Substitute 4 for z and solve

3(4^2)-10(4)-5

3(16)-40-5

48-40-5

8-5

3

Answer 2

3x²-10z-5

z= 4

3(4)²-10(4)-4

4⁴=16

3× 16-10(4)-5

3×16=48

48-10(4)-5

10(4)= 40

48-40-5

48-40=8

8-5= 3

So your answer is 3

GOOD LUCK!! :)