Answer:
21n² - 28n + 7
Step-by-step explanation:
Each term in the second factor is multiplied by each term in the first factor, that is
3n(7n - 7) - 1(7n - 7) ← distribute both parenthesis
= 21n² - 21n - 7n + 7 ← collect like terms
= 21n² - 28n + 7
1st and 2nd pictures are for finding area and 3rd picture is for finding perimeter
hope you understood well and if not and you can ask again
I hope this helps you
Area =3/4.5/12
Area =5/4.4
Area =5/16
Answer:
Around the 3 + 6:-
(3 + 6) x 9 + 3
Step-by-step explanation:
(3 + 6) x 9 + 3
= 9 x 9 + 3
= 84.
Start your dot on 3 on the y axis. Move is downwards on the y axis by 5 everytime you move over once on the x axis. Shade all the stuff above the line since it says y is greater than -5x+3
