The value of a and b, if the zeros of x²+(a+5)x-(b-4) are -5 and 9 will be
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Answer:
a = -1
b = -41
Step-by-step explanation:
by finding sum of zeroes and product of zeroes we find out the value of a and b .
may be it helps u
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Answer:
(a,b) = (-9,49)
Step-by-step explanation:
Value of (x = -5) in given equation should give zero, so,
(-5)^2 + (a + 5)(-5) - (b - 4) = 0
25 - 5a - 25 - b + 4 = 0
5a + b = 4 .... (1)
Similarly,
For (x = 9)
(9)^2 + (a + 5)(9) - (b - 4) = 0
81 + 9a + 45 - b + 4 = 0
9a - b = -130 .... (2)
(1) + (2)
14a = -126
a = -9
Therefore,
b = 49
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