exam Maths Puzzle Numerical Ability

Solve
15x^4-31x^2+10=0

The solution of x= ??

Read Solution (Total 0)

exam Other Question

(x+2)(x+4)

I worked this and want to mak sure my answer is correct

I have x^2 +8. Is this correct or x^2 + 2x+6? =|x| +2 graph this problem for me please