Dind the zeroes of polynomial 3xsquare+15x+12
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Answered by
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Answer:
-1..............is the answer......
Answered by
0
Step-by-step explanation:
3x^2+15x+12=0
3x^2+(12+3)x+12
3x^2+12x+3x+12
3x(x+4)+3(x+4)
(x+4)(3x+3)
either
x+4=0 3x+3= 0
x=-4 3(x+1)=0
x+1=0
x=-1
hence -4 and -1 are the zero of the polynomial
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