Question

-(7y+6)(5y+4)
multiply and simplify
will medal

Answer 1

use the same as you were just shown

hint - be careful about the - sign outside first bracket....

Answer 2

thats correct
its on the outside of the bracket

Answer 3

i can walk you through it if you want

Answer 4

please i hate these

Answer 5

i have 3 i have to get right

Answer 6

Yes I know

I am asking YOU to use the same methodas oyu were just shown

BUT be careful about the - sign

Answer 7

okay so first you need to distribute the negative that's outside the first set of parentheses

Answer 8

I showed you the FOIL method

so what do you get when you multiply the FIRST terms from the 2 brackets together?

Answer 9

35y

Answer 10

would it be 35y^2

Answer 11

yes good

now the 2 O utrer terms?

Answer 12

"Outer"

Answer 13

24

Answer 14

Well - that is the two LAST terms - but its OK - we need that as well

so the OUTER terms are
7y and 4

the inner terms are
6 and 5y

so what do you get when you multiply THOSE pairs?

Answer 15

27y
30y

Answer 16

28y

Answer 17

sorry stupid computer

Answer 18

so the 2 brackets altogether are
35y^2 +27y + 30y + 24

we need to join the 2 terms with y in

AND THEN REMEMBER THE - sign

so first join the two y terms...

Answer 19

yes - 28 y is better sorry I mssed that

Answer 20

that is NOT a minus btw - just punctuation - sorry

Answer 21

35y^2-57y+28

Answer 22

it's 35y^2 +58 y + 28

OK

but we also have the minus sign outside ALL

so
-(35y^2 +58 y + 28 )

so now distribute the minus inside the bracket and you will have th eanswer
(AND you did it YOURSELF!) well done

Answer 23

thanks just a little confusing to me

Answer 24

you still need to do the minus into the bracket....

Answer 25

was just saying thanks doing it now

Answer 26

-35y^2-58y-28

Answer 27

excellent - good job



remember FOIL
you will get 4 terms, and you can always combine 2 of them...