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Question
The quadratic polynomial whose zeroes are -3, 5 is given by
The quadratic polynomial whose zeroes are -3, 5 is given by
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Solution
The correct option is C x2−2x−15
The zero of the polynomial is defined as any real value of x, for which the value of the polynomial becomes zero.if x=−3 thenIn the equation x2−2x−15⇒(−3)2−2×−3−15⇒9+6−15=0
if x=5 thenIn the equation x2−2x−15⇒(5)2−2×5−15⇒25−10−15=0
The zero of the polynomial is defined as any real value of x, for which the value of the polynomial becomes zero.
if x=−3 then
In the equation x2−2x−15
⇒(−3)2−2×−3−15
⇒9+6−15=0
if x=5 then
In the equation x2−2x−15
⇒(5)2−2×5−15
⇒25−10−15=0
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are zeroes of the polynomial x2 − 2x − 15, then form a quadratic polynomial whose zeroes are (2