(a)a rainbow is represented by the quadratic polynomial x^2+(a+1)x+b whose zeroes are 2 and -3 . then
(I) a=7, b= +1 (ii) a=5 ,b=-1 (iii) a =2, b = -6 (iv) a=0, b= -6
(b) the polynomial x^2-2x-(7p+3) represents a rainbow. if, then the value of p is
(I) 1 (ii) 2 (iii) 3 (iv) 4
plzz tell me fast
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Answer:
2+(-3) =-(a+1) /1
-1=-a-1
a=0
2(-3) =b/1
-6=b
b=-6
Answered by
1
A quadratic polynomial is a polynomial of second degree with the highest degree term equal to 2. is the general form of a quadratic equation. The coefficients are a and b, the unknown variable is x, and the constant term is c.
Given:
whose zeroes are and .
(a) A polynomial's zeroes are all the values at which the polynomial equals zero.
i.e. and .
Since both equations are equal to zero. As a result, the two equations are equal.
Substituting the value of ‘’ in (i)
Correct Answer is (iv).
(b) Given:
Polynomial
If is zero of given polynomial then
Correct Answer is (iii)
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