Question

3. If “2” is the zero of both the polynomials 3x2 + mx - 14 and 2x3 + nx2 + x - 2, then thevalue of m-2n is (1)
a. 5
b. -1
C. 9
d. -9
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Answer 1

Answer:

2 is zeroe of polynomial

so lets substitute 2 in both given equations

keep x=2

3.4+2m-14=2m-2=0 m=1

2.8+4n+2-2=4n+16=0n=-4

m-2n is 1-2.-4

1+8=9

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Step-by-step explanation:

Answer 2

Answer:

c) 9 is the answer..........