2x×x+4x-448=0 factorise
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Answered by
1
Answer :
See the picture above attached!
I've solved by two methods, one by factorisation and other by completing square.
See the 3 pics.
_______________________
@LovelyG ❤️
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LovelyG:
I've solved by completing square method. See all the pictures
what is in the 6th line no sign in completing method
-1 - 224 = -225
another photo in were should put sign
please send another photo
Please say clearly, I'm unable to get your problem.
There are 3 photos
send another pics in putting sign correctly
But solution is correct, when -225 will go in right hand side, sign will be changed to positive
ok
Answered by
0
2x*x+4x-448=0
=2x*5x-448=0
=10x^2 - 448=0
=10x^2 =0+448
=10x^2=448
=10x=√448
=10x=21.1660104885
=x=21.1660104885/10
=x=2.11660104885
PLZ MARK AS BRAINIEST
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