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x=7x=7 find the value of kk in polynomial x2+4x−3kx^2+4x-3k

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Full solution

Q. x=7x=7 find the value of kk in polynomial x2+4x−3kx^2+4x-3k
  1. Substitute x=7x = 7: Step 11: Substitute x=7x = 7 into the polynomial x2+4x−3kx^2 + 4x - 3k.\newlineCalculation: (7)2+4(7)−3k=49+28−3k=77−3k(7)^2 + 4(7) - 3k = 49 + 28 - 3k = 77 - 3k.
  2. Find value of kk: Step 22: We need to find the value of kk, but we don't have any additional information to solve for kk directly. We need a value for the polynomial to proceed.

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