PSAT Math Grid-In Answers Can Equal Zero?
I used to think a Grid-In Answer could never be zero; this question changed my mind.
If (a-10b)^2=a^2+ 100b^2, what is a^2b^4
That just made the PSAT a whole lot harder. Or is it just common sense that if: a -b + c = a + c one would assume that a^2b^4 would be zero?