Solving expression
we get 
Step-by-step explanation:
We need to solve the expression:

Solving:
Multiplying 5 with terms inside the bracket:

So, Solving expression
we get 
Keywords: Solving Expressions
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Answer:
x^2 + 5n = 4mx
=> x^2 - 4mx + 5n = 0
D=0 (since one root then roots are equal)
b^2-4ac = 0
(-4m)^2 - 4(1)(5n) = 0
16m^2 - 20n = 0
16m^2 = 20n
8m^2 = 10n
4m^2 = 5n
hope it helps.......
Answer:
the first one
Step-by-step explanation:
y = 3x/3
y = x
Step-by-step explanation:
3/4:2/5=3/4×5/2=15/8
3/8 ÷ 2/12=3/8 ×12/2=36/16=9/4