Solve: 5y (3 y - 7 )- 5 (y - 4) - 60 for y = -2 *
100
120
90
Answers
Answered by
0
Answer:
100 is the correct option
Step-by-step explanation:
5y (3 y - 7 )- 5 (y - 4) - 60
15y² - 35y - 5y + 20 - 60
15y² - 40y - 40
Put y = -2
15(-2)² - 40(-2) - 40
15(4) - (-80) - 40
60 + 80 - 40
60 + 40
100
Answered by
0
Answer:
100
Step-by-step explanation:
- 5y(3y-7)-5(y-4)-60
- 15y2-35y-5y+20-60
- 15y2-40y+20-60
- 15y2-40y-40
- putting y =-2
- 15x(-2x-2)-40x(-2)-40
- 15x+4+80-40
- 60+80-40
- 60+40
- 100
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