If f(x) =2x^3 + Ax^2 + 4x - 5 and f(2) = 5, what is the value of A? I keep getting = -31\2 but the correct answer is -7/2 how do I get that? :| thank you
Follow Math Help Forum on Facebook and Google+
Originally Posted by cokeclassic If f(x) =2x^3 + Ax^2 + 4x - 5 and f(2) = 5, what is the value of A? I keep getting = -31\2 but the correct answer is -7/2 how do I get that? :| thank you means from here, simple arithmetic will get you the right answer (-7/2). want to try?
Oh opps... I multiplied 2 x 2 first Thank you
View Tag Cloud