construct the a quadratic equation if the sum and the product of the roots are 3 and -2 respectively
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Let the roots of the polynomial be α and β
Given α+β = 3
and αβ = -2
WE know that the quadratic polynomial when α and β are the roots is
x² - (α+β)x + αβ
= x² - (3)x + (-2)
= x² - 3x - 2
∴The quadratic polynomial is x²-3x-2
Given α+β = 3
and αβ = -2
WE know that the quadratic polynomial when α and β are the roots is
x² - (α+β)x + αβ
= x² - (3)x + (-2)
= x² - 3x - 2
∴The quadratic polynomial is x²-3x-2
Aliyaa:
tysm!! buddy
welcm
determine whether x=-2 is a solution of the quardratic equation xsquare=-2x+8=0 or not
Given eq = x^2 = -2x +8 can be wriiten as x^2 + 2x - 8 = 0
Substituting x = -2 in the eq (-2)^2 + 2(-2) - 8 = 0 4+(
4+ (-4) - 8 = 0 4-4-8 = 0 4-12 = 0 -8 = 0
Since x = -2 in the eq does not give out 0 as a result it is not a zero of the polynomial
thanks buddy hey can you please help me for my homework today
if i have time sure
Hmm thank you
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2
k(x^2-3x-2) is the quadratic equation
yeah
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