If i read it right, it would just be 1 - 953. Depending on your grade (Around 3rd grade it would just be 952) Above that would be -952
The formula of an area of a rectangle:
A = wl
We have l = w - 4 and A = 21.
Substitute:
w(w - 4) = 21 <em>use distributive property</em>
(w)(w) + (w)(-4) = 21
w² - 4w = 21 <em>subtract 21 from both sides</em>
w² - 4w - 21 = 0
w² - 7w + 3w - 21 = 0
w(w - 7) + 3(w - 7) = 0
(w - 7)(w + 3) = 0 ↔ w - 7 = 0 ∨ w + 3 = 0
w = 7 ∨ w = -3 < 0
l = w - 4 → l = 7 - 4 = 3
<h3>Answer: the length = 3 u.</h3>
Answers is C
Step by step solution is attached
I’m pretty sure it’s (x-7)(x+6)
to factor you need it to multiply to -42 and add to -1 which gives you -7 and 6
Answer:47m
Step-by-step explanation: