exam Maths Puzzle Numerical Ability

find the zeros of x^4-4x^3-x^2+10

Read Solution (Total 0)

exam Other Question

if someone wanted an average grade of 90 and they base the grade on 4 tests and the first 3 scores were 84 93 and 88 what would the last test score grade have to be to get a total average of 90?
85
88
92
or
95 FOIL
(6a+5t)(6a-5t)
this is my answer is it correct?
36a^2+60at-25t^2