CBSE Class 9 Answered
for what value of,K the factor of xsquare + x-(2K+2)and 2xsquare + Kx-12 is x+4?
Asked by | 05 Jun, 2009, 10:55: PM
Expert Answer
(1) x2+x-(2K+2)
it has x+4 as factor which means x+4 is a root of this equation so
substituting 4 in the equation will make it 0
16+4-(2K+2)=0
K=9
(2)2x2 + Kx-12 has factor x+4 which means x+4 is a root of this equation so
substituting 4 in the equation will make it 0
2(4)2 + K(4)-12 =0
K=5
Answered by | 06 Jun, 2009, 01:25: AM
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