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OpenStudy (anonymous):
|dw:1393987228797:dw|
OpenStudy (unklerhaukus):
expand the brackets
OpenStudy (anonymous):
hwo would i do that? i dont know how to do this ?
OpenStudy (unklerhaukus):
well the first term 4(4k+2)
becomes 4*4k+4*2
OpenStudy (unklerhaukus):
can you simplify this ?
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OpenStudy (anonymous):
well yeah but i got it wrong on my test
OpenStudy (unklerhaukus):
what do you get when you simplify
4(4k+2)= 4*4k+4*2=
OpenStudy (anonymous):
4(4k+2)=16k+8
OpenStudy (unklerhaukus):
good,
now expand the brackets and simplify the text term
-8(k-2) = =
OpenStudy (anonymous):
-8(k-2)=16k+8=6k+12-1 right?
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OpenStudy (unklerhaukus):
nope
-8(k-2) =-8*k+-8*-2 =
OpenStudy (unklerhaukus):
try again
OpenStudy (anonymous):
well sorry but i cnt get it
OpenStudy (anonymous):
for solving the whole problem i got k=2
OpenStudy (anonymous):
Did u get it?
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OpenStudy (anonymous):
4(4k+2)-8(k-2)>3(2k+4)-1 Distribute by multiplying
16k+8-8k+16 > 6k+12 -1 Combine like terms
8k+24 > 6k + 11 Subtract 6k from both sides
-6k -6k(they cancel each other out)
2k+24> 11 Subtract 24 from both sides
-24 -24
2k > -13 Divide both sides by 2
k > -13/2 Answer
OpenStudy (anonymous):
Any q's ? :D
OpenStudy (anonymous):
best response ?
OpenStudy (anonymous):
The symbol with line under it is an equal to so, u would write
k >= -13/2