which identity can not be used in solving:
(x+y)2 -(x - y)2
(a+b)2
(a -b)2
a2 - b2
(x+a)(x+b)
Answers
Answered by
0
Answer:
alll are use....but maximun time...(x+y)2-(x-y)2 is not use
hope i help u plz mark me all and follow me
Answered by
1
Answer:
(x+y)²-(x-y)²
= 4xy
(a+b)²
= a²+2ab+b²
= (a-b)²+4ab
(a-b)²
= a²-2ab+b²
= (a+b)²-4ab
a²-b²
=(a+b)(a-b)
(x+a)(x+b)
= x² +(a+b)x +ab
please make me brainliest and follow me. first answer which is brainliest is wrong. (x+y)²-(x-y)² it is also a formula.ok.
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