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Algebra
Determine the value of k so that 2x + 1 is a factor of 2x^2 + 7x + k
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Algebra
:) If 2x+1 is a factor of 2x^2 + 7x + k, then
X = -1/2 is a root of 2x^2 + 7x + k = 0 Then by substitution of x=-1/2 2/4 -7/2 + k = 0 Solve for k and you get k=3 Check : 2x^2 + 7x + 3 = (2x+1)(x+3) |
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