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9(2a-b)²-4(2a-b)-13
let 2a -b = x
=9x²-4x-13
= 9x² +9x -13x -13
= 9x(x+1)-13(x+1)
= (9x-13)(x+1)
now substitute x,
= {9(2a-b)-13}{2a-b+1}
I hope you understand the solution.
All the best!
let 2a -b = x
=9x²-4x-13
= 9x² +9x -13x -13
= 9x(x+1)-13(x+1)
= (9x-13)(x+1)
now substitute x,
= {9(2a-b)-13}{2a-b+1}
I hope you understand the solution.
All the best!
ronit9:
can you say me how to write squares and cubes in Android mobile
just hold any number to make it a power.
instead of touching it!
Thanks for helping
my pleasure!
its not working
i use Google keyboard
or G board
oh it works
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