Minus a minus b the whole square formula
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Answered by
82
(-a-b)²=a²+b²+2(-a)(-b)
=a²+b²+2ab
=a²+b²+2ab
Answered by
35
(a + b)2 = a2 + b2 + 2ab
(a - b)2 = a2+ b2 - 2ab
a2 - b2 = (a + b) (a - b)
(a + b)3 = a3 + b3 + 3ab(a + b)
(a - b)3 = a3- b3 - 3ab(a - b)
a3 + b3 + c3- 3abc = (a + b + c)(a2 + b2 + c2 - ab - bc - ca)
(a - b)2 = a2+ b2 - 2ab
a2 - b2 = (a + b) (a - b)
(a + b)3 = a3 + b3 + 3ab(a + b)
(a - b)3 = a3- b3 - 3ab(a - b)
a3 + b3 + c3- 3abc = (a + b + c)(a2 + b2 + c2 - ab - bc - ca)
nitya1984:
are you in 10th
but my exan i there in ny tutions
from 6:00pm
today
bye.
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