factorise x4 - (x-z)4
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Answered by
22
™ x^4 - ( x - z )^4
= { ( x )^2 }^2 - { ( x - z )^2 }^2
={ x^2 - ( x - z )^2 } { ( x^2 + ( x - z )^2 }
={ x - ( x - z ) } { x + ( x - z ) }
{ x^2 + ( x - z )^2 }
= { ( x )^2 }^2 - { ( x - z )^2 }^2
={ x^2 - ( x - z )^2 } { ( x^2 + ( x - z )^2 }
={ x - ( x - z ) } { x + ( x - z ) }
{ x^2 + ( x - z )^2 }
callior4:
thx bro
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11
ʜᴇʏᴀ!!
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_____________________
x^4 - ( x - ᴢ )^4
= ( x^2 )^2 - { ( x - ᴢ )^2 }^2
= { x^2 + ( x - ᴢ )^2 } { x^2 - ( x - ᴢ )^2 }
= { x^2 + x^2 - 2xᴢ + ᴢ^2 } { ( x + x - ᴢ ) ( x - x + ᴢ ) }
= { 2x^2 - 2xᴢ + ᴢ^2 } { ( 2x - ᴢ ) ᴢ }
= ( 2x^2 - 2xʏ + ᴢ^2 ) ( 2xᴢ - ᴢ^2 )
______________________
ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ʏᴏᴜ ᴅᴇᴀʀ! :)
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ʜᴇʀᴇ's ʏᴏᴜʀ ᴀɴsᴡᴇʀ
_____________________
x^4 - ( x - ᴢ )^4
= ( x^2 )^2 - { ( x - ᴢ )^2 }^2
= { x^2 + ( x - ᴢ )^2 } { x^2 - ( x - ᴢ )^2 }
= { x^2 + x^2 - 2xᴢ + ᴢ^2 } { ( x + x - ᴢ ) ( x - x + ᴢ ) }
= { 2x^2 - 2xᴢ + ᴢ^2 } { ( 2x - ᴢ ) ᴢ }
= ( 2x^2 - 2xʏ + ᴢ^2 ) ( 2xᴢ - ᴢ^2 )
______________________
ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ʏᴏᴜ ᴅᴇᴀʀ! :)
★ ᴅᴇᴠɪʟ ᴋɪɴɢ
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