Answer:
(a+b)^2+(a-b)^2=2(a^2+b^2)
expanding:
a² + 2ab + b² + a² -2ab + b² = 2a² + 2b²
2a² + 2b² = 2a² + 2b²
Answer:
x=7
Step-by-step explanation:
ln(x)+ln(x-3)=ln(4x)
x≥0,x≥3
combining x≥3
ln[x(x-3)]=ln(4x)
x(x-3)=4x
x²-3x-4x=0
x²-7x=0
x(x-7)=0
x=0(rejected),7
Answer:
10/4 =10/4 ounces
Step-by-step explanation:
Maybe B (not sure).................
Answer:
No solutions
Step-by-step explanation:
18-30w=20-10w-20w
18-30w=20-30w
18-20=30w-30w
-2 does not equal to 0
No solutions
