Question

(x-8)(x-3) expand and simplify

Answer 1

multiply member to member

Answer 2

does - and - equal +

Answer 3

lets see an example
(a + b) . (x + y) =

= a . (x + y) + b . (x + y )

= ax + ay + bx + by

Answer 4

x^2 - 3x - 8x + 24 -> x^2 - 11x + 24

Answer 5

There's also a really simple proof as to why - and - is +, look it up if you're curious

Answer 6

oh thank, but why is the plus at the end of the working out?

Answer 7

ohhhh nvm i get it

Answer 8

yeah, np

Answer 9

wait actually i dont get it sorry :/ i thought - and - =+ but then why is there a - before the 11

Answer 10

okay so you multiply x times - 3 = -3x

Answer 11

and then -8 times x = -8x

Answer 12

So you have -3x + -8x -> -3x - 8x -> -11x

Answer 13

ohhh okay thank you haha

Answer 14

yeah, i hope that makes sense :)

Answer 15

yeah :)

Answer 16

so would (4x+7)(5x+2) be 20x+35x+8x+14?