Mathematics

Big Mac

20 February, 22:43

Two students in mr d'alsesandro's class were asked to write an equivalent expression for the expression (a-6) (a-4). identify the student with the correct work and where the mistakes were in the other students work

gabrielles work

(a-6) (a-4)

= a. a = a (-4) - 6 (a) - 6 (-4)

= a ^2 - 4a - 6a - 24

= a^2 - 10a - 24

britneys work

(a-6) (a-4)

= a. a - 4a - 6a - 6 (-4)

= a ^2 - 10 a

+24