exam
Maths Puzzle
Numerical Ability
21-[-(3-4)-2]-5
21-[-3+(-4)-2]-5
21-[-7)-2]-5
21-[-7+(-2)-5
21-(-9)-5
21+9-5
30-5
25
Textbook gives this answer as 17
What am I doing wrong?
Thank you.
Read Solution (Total 0)
exam Other Question
Factor completely.
2x squared + 7x - 4
Using synthetic division, determine whether the numbers are zeros of the polynomial.
5, 0; f(x)=2x^4-8x^3-15x^2+30x-25