Math, asked by ITzTaesOreoGirlLiza, 1 month ago

ᴍᴜʟᴛɪᴩʟy ᴛʜᴇ ʙɪɴᴏᴍɪᴀʟꜱ .



(i) \:  \:  \:  \: (\frac{3}{4} a {}^{2}  \:  + 3b {}^{2}  )  \:  \: and \:  \: 4(a {}^{2}  -  \frac{2}{3}b {}^{2}  )
(ii) \:  \:  \:( y - 8) \:  \: and \:  \:  \: (3y - 4) \:  \:


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Answers

Answered by xxblackqueenxx37
14

 \: \: \: \huge\mathcal{\fcolorbox{aqua}{azure} {\red{❖Answer❖}}}

 \sf \: (i) \: ( \frac{3}{4}  {a}^{2}  +  {3b}^{2} ) \: and \: 4( {a}^{2}  -  \frac{2}{3}  {b}^{2} )

 \sf \: =  > \: ( \frac{3}{4}  {a}^{2}  +  {3b}^{2} ) \:  \times  \: 4( {a}^{2}  -  \frac{2}{3}  {b}^{2} )   \:  \:  \:

 \sf \: \sf = ( \frac{3}{4}  {a}^{2}  + 3 {b}^{2} ) \:  \times [(4 \times  {a}^{2}) -  (4 \times  \frac{2}{3}  {b}^{2} ) ]

 \sf \: =  ( \frac{3}{4} a² + 3b²) × (4a² -  \frac{8}{3} b²)

 \sf \:  =  \:  \frac{3}{4}  {a}^{2} (4 {a}^{2}  -  \frac{8}{3}  {b}^{2} ) + 3 {b}^{2} ( {4a}^{2} -  \frac{8}{3}  {b}^{2}  )

 \sf \: =  ( \frac{3}{4} {a}^{2}  \times  {4a}^{2}  ) -  (\frac{3}{4}  {a}^{2} \times  \frac{8}{3} {b}^{2}   ) + ( {3b}^{2}  \times  {4a}^{2} ) - ( {3b}^{2} \times  \frac{8}{3} {b}^{2}   )

 \sf \: = 3 {a}^{4}  - 2a²b² + 12b²a²-8b4

 \\  \\  \\

 \sf \: (ii) \: \: \:( y - 8) \: \: and \: \: \: (3y - 4) \: \:

 \sf \: = y(3y - 4) - 8(3y - 4) \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\ \sf= (y  \times  3y) - (y  \times  4) - (8  \times  3y) + (8  \times  4) \\ \sf= 3y² - 4y + 24y - 32  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\ \sf \:  = 3y² - 28y + 32   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:

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therefore your answer is

(i) = 3a⁴ - 2a²b² + 12b²a²-8b⁴

(ii) = 3y² - 28y + 32

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