Factorise
1. 75(x+y)2 - 48 (x-y)2
2. a2+4a+4-b2
3. a2-b2-2b-1
4. x2+6x+9-4y2
Please answer i will mark u as brainliest
Answers
Answered by
8
1.) Use identity
a^2 - b^2 = (a-b)(a+b)
So it will be,
= {75(x+y)+48(x-y)}{75(x+y)-48(x-y)}
= (75x+75y+48x-48y)(75x+75y-48x+48y)
= (123x+27y)(27x+123y)
Factorised
a^2 - b^2 = (a-b)(a+b)
So it will be,
= {75(x+y)+48(x-y)}{75(x+y)-48(x-y)}
= (75x+75y+48x-48y)(75x+75y-48x+48y)
= (123x+27y)(27x+123y)
Factorised
Ridastar789:
Tnks Varun.....but the answer is 3(9x+y)(x+9y).......can u try solving the others?
it will take a very large time as these are very lengthy questions
i can give the main idea
then u can solve using that
Ok
but first mark as Brainliest
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