Q. Simplify the given expression 8(x−2)2+y2−x+y−3xy(1−12x)=4x(2x−9xy)+(y+9)2−3x(y−7)
Expand Term 1: Expand the term 8(x−2)2 using the formula (a−b)2=a2−2ab+b2.8(x−2)2=8(x2−4x+4)=8x2−32x+32
Expand Term 2: Expand the term (y+9)2 using the formula (a+b)2=a2+2ab+b2.(y+9)2=y2+18y+81
Expand Term 3: Expand the term 3xy(1−12x) by distributing 3xy across the parentheses.3xy(1−12x)=3xy−36x2y
Expand Term 4: Expand the term 4x(2x−9xy) by distributing 4x across the parentheses.4x(2x−9xy)=8x2−36x2y
Combine Expanded Terms: Combine all the expanded terms into the original equation.8x2−32x+32+y2−x+y−(3xy−36x2y)=8x2−36x2y+y2+18y+81−3x(y−7)
Simplify Left Side: Simplify both sides of the equation by combining like terms.On the left side:8x2−32x+32+y2−x+y−3xy+36x2y= 8x2−33x+y2−2xy+32+36x2yOn the right side:8x2−36x2y+y2+18y+81−3xy+21x= 8x2−36x2y+y2+18y+81−3xy+21x
Simplify Right Side: Subtract 8x2, y2, and 36x2y from both sides to simplify further.8x2−33x+y2−2xy+32+36x2y−8x2−y2−36x2y=8x2−36x2y+y2+18y+81−3xy+21x−8x2−y2−36x2yThis simplifies to:−33x−2xy+32=18y+81−3xy+21x
Subtract Terms: Combine like terms and move all terms to one side to set the equation to zero.−33x−2xy+32−18y−81+3xy−21x=0This simplifies to:−54x+xy−18y−49=0
Combine and Set to Zero: We have simplified the equation to its simplest form.−54x+xy−18y−49=0
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