Answer:
x(x-7)+4(x-1)/(x-1)(x+1)(x-7)
Step-by-step explanation:
Given the expression x/x²-1 + 4/x²-6x-7
Factorize x²-6x-7
x²-6x-7
= x²-7x+x-7
= x(x-7)+1(x-7)
= (x+1)(x-7)
Replace back into the expression given
x/x²-1 + 4/x²-6x-7
= x/x²-1 + 4/ (x+1)(x-7)
= x/(x+1)(x-1) + 4/(x+1)(x-7)
Find the LCM
= x(x-7)+4(x-1)/(x-1)(x+1)(x-7)
This gives the required expression
Answer:
D $1298
Step-by-step explanation:
10% of 5200 is 520
1% is 52
0.5% is 26
700+520+52+26 = 1298
Answer:
18,27, putting 3 fives instead of 5 3s.
Step-by-step explanation:
150.88=7.4*3.1+3.1*5+7.4*5+7.4*3.1+7.4*5+5*3.1 thank you
Those numbers are called Compatible Numbers
