for what value of K is 3 a zero of p(x) 2x2 + X + k
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Answered by
1
3 is a zero
p(3)=2×(3)^2+3+k=0
2×9+3+k=0
18+3+k=0
k=-21
p(3)=2×(3)^2+3+k=0
2×9+3+k=0
18+3+k=0
k=-21
piyush474:
thank you
Answered by
5
2x² + x + k = 0
2(3)² + 3 + k = 0
2(9) + 3 + k = 0
18 + 3 + k = 0
21 + k = 0
k = -21
2(3)² + 3 + k = 0
2(9) + 3 + k = 0
18 + 3 + k = 0
21 + k = 0
k = -21
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