Answer: -4m-n
Step-by-step explanation:
5m-13m-n+4m
5m-13m+4m-n
-8m+4m-n
-4m-n
Answer:
50
Step-by-step explanation:
^^^^^^^^^ (please give me brainliest)
Answer:
jk rjliukrulukurkd heeeey k37739
Q4, 4y²=60
y=√15 ( i am not sure)
q6, (5+y) ²=81
5+y=9
y=4
q7 (x+4) (x) =77
x²+4x-77=0
(x+11) (x-7) =0
x=-11(rej) or x=7
therefore ,length= 7+4=11cm
breadth=7cm