Find the value of t such that (5x^2 - 6x + 7)(4x^2 +tx + 10) = 20x^4 -9x^3+ 60x^2 - 39x + 70.
It's 3, trust me
-Vinculum
Consider the coefficient of x^2 on both sides.
5(10)+(−6)(t)+7(4)=60−6t+78=60t=3
Yeah, Vinculum's answer is correct.