A quadratic polynomial , whose zeroes are -3 and 4 is , (A) X square - x + 12 (B) x square + x + 12 (C) x square/2 - x/2 -6 (D) 2x square + 2x - 24 Please solve it .
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Given-Zeroes are 4 and -3
Now,
αβ=4×(-3)
= -12⇒ -b/a= -(-12)/1
∴,b=12 and a=1
Again,
α+β=4+(-3)
=1⇒ c/a=1/1
∴c=1 and a=1
So the quadratic polynomial will be of the form ax²+bx+c ,i.e-
x²+12x+1
#Srijoni : 3
Now,
αβ=4×(-3)
= -12⇒ -b/a= -(-12)/1
∴,b=12 and a=1
Again,
α+β=4+(-3)
=1⇒ c/a=1/1
∴c=1 and a=1
So the quadratic polynomial will be of the form ax²+bx+c ,i.e-
x²+12x+1
#Srijoni : 3
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