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Simplify 3y(2y-7)-3(y-4)-63 and Take Y= -2

    3y2y-7 - 3y-4 - 63=3×-22×-2 - 7 - 3-2 - 4 - 63=-6-4 - 7 - 3-6 - 63=-6 × -11 + 18 - 63=66 + 18 - 63=66 - 63 + 18=3 + 18=21

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21
 
  • -2
good quessttion
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hor
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6y+21-3y+12-63
6y-3y+21+12-63
3y-30

Y= -2
3y-30
3(-2)-30
-6-30
-36
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63
  • -2
Simplyfying,
3y(2y-7)-3(y-4)-63
We get,
6y​2-21y-3y-12-63
=>6y​2-24y-75
Replacing the value of y=-2
6*(-2)2-24*(-2)-75
=6*4+48-75
=24+48-75
=72-75
= -3
Hope you like it!
 
  • -1
21
  • -1
 Simplifying,
3y(2y-7)-3(y-4)-63
We get,
6y​2-21-3y+12-63
=>6y2-24y-51
Replacing the value y= -2
6*(-2)2-24*(-2)-51
=6*4+48-51
=24+(-3)
=21
 
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