25a2 +9b2 + 30ab 2x2 - 16x + 32 5c2 +30c + 45 128x2 +96xy + 18y2 450a2 +242c2 + 660ac y2 - xy - 56x2 Can you show me how to do these promblems. I realy what to now how to learn to do theses problems.
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Originally Posted by frow4 25a2 +9b2 + 30ab 2x2 - 16x + 32 5c2 +30c + 45 128x2 +96xy + 18y2 450a2 +242c2 + 660ac y2 - xy - 56x2 Can you show me how to do these promblems. I realy what to now how to learn to do theses problems. We did a bunch for you this afternoon. Can you please show us some of your work now? What have you tried?
i can do simple ones like x2n + 10xn + 16 (x^n + 8)(X^n+2) y2x - yx - 20 (y^x-5) (y^x-4) what i am having troubles on 128x2 +96xy + 18y2 ; 450a2 +242c2 + 660ac because of the x^2 and Y^2 and xy I have no idea what to do with those powers
Originally Posted by frow4 y2 - xy - 56x2 I'll do this one for you. The coefficient of is 1. So we can say this: Now take a look at 56. We want factors of 56 so that the difference of the two factors gives us -1 7 and 8 clearly satisfies this condition. So the final answer is:
Originally Posted by frow4 128x2 +96xy + 18y2 So You times 128 by 18 to get 2304. factors of 2304 That equals 96 is 48. So it (128x+48y)^2 then you reduces it to (8x+3y)^2 Is that right
Originally Posted by frow4 So You times 128 by 18 to get 2304. factors of 2304 Why are you doing this? 128x2 +96xy + 18y2 First factor out a 2.
Originally Posted by Soroban . Example: Write the two pairs of parentheses and "split the x's": . Use the first coefficient twice: . Multiply the first coefficient by the last coefficient: . We will factor into two parts. Note the sign of the last term. . . If "+", think sum. . . If "-", think difference. i look this up and it tells me to do it
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