SOLUTION: Find t if the expansion of the product of x^3 - 4x^2 + 2x - 5 and x^2 + tx - 7 has no x^2 term.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Find t if the expansion of the product of x^3 - 4x^2 + 2x - 5 and x^2 + tx - 7 has no x^2 term.       Log On


   

Question 1030143: Find t if the expansion of the product of x^3 - 4x^2 + 2x - 5 and x^2 + tx - 7 has no x^2 term.
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
after expansion. (Use the vertical method for faster result :D!)
Since the outcome is supposed not to have x%5E2, ==> 2t + 23 = 0, or t+=+-23%2F2.