(x³- 3x²+2x+1)/x²-4x+4 dx (dx/dy) + x²+4y-y²)/(²√4y+y²) can you help me to solve this question ?
Answers
Answer:
Step-by-step explanation:
x2 - y2 + 4y
Simplify ————————————
y2 + ysqt4
y2 + ysqt4 = y • (y + sqt4)
((((x3)-(3•(x2)))+2x)+1) x (x2-y2+4y)
(((————————————————————————•d)•x)•((d•—)•y))+——————————
(((x2)-4x)+4) d y•(y+sqt4)
((((x3)-(3•(x2)))+2x)+1) x (x2-y2+4y)
(((————————————————————————•d)•x)•((d•—)•y))+——————————
(((x2)-4x)+4) d y•(y+sqt4)
((((x3)-3x2)+2x)+1) (x2-y2+4y)
(((———————————————————•d)•x)•xy)+——————————
(x2-4x+4) y•(y+sqt4)
x3 - 3x2 + 2x + 1
Simplify —————————————————
x2 - 4x + 4
x3 - 3x2 + 2x + 1 is not a perfect cube
Factoring: x3 - 3x2 + 2x + 1
Group 1: 2x + 1
Group 2: x3 - 3x2
Pull out from each group separately :
Group 1: (2x + 1) • (1)
Group 2: (x - 3) • (x2)
(x3-3x2+2x+1) (x2-y2+4y)
(((—————————————•d)•x)•xy)+——————————
(x-2)2 y•(y+sqt4)
d•(x3-3x2+2x+1) (x2-y2+4y)
((———————————————•x)•xy)+——————————
(x-2)2 y•(y+sqt4)
xd•(x3-3x2+2x+1) (x2-y2+4y)
(————————————————•xy)+——————————
(x-2)2 y•(y+sqt4)
x1 multiplied by x1 = x(1 + 1) = x2
x2dy • (x3 - 3x2 + 2x + 1) (x2 - y2 + 4y)
—————————————————————————— + ——————————————
(x - 2)2 y • (y + sqt4)
Denote the Least Common Multiple by L.C.M
Denote the Left Multiplier by Left_M
Denote the Right Multiplier by Right_M
Denote the Left Deniminator by L_Deno
Denote the Right Multiplier by R_Deno
Left_M = L.C.M / L_Deno = y•(y+sqt4)
Right_M = L.C.M / R_Deno = (x-2)2
L. Mult. • L. Num. x2dy • (x3-3x2+2x+1) • y • (y+sqt4)
—————————————————— = ———————————————————————————————————
L.C.M y • (x-2)2 • (y+sqt4)
R. Mult. • R. Num. (x2-y2+4y) • (x-2)2
—————————————————— = —————————————————————
L.C.M y • (x-2)2 • (y+sqt4)
x2dy • (x3-3x2+2x+1) • y • (y+sqt4) + (x2-y2+4y) • (x-2)2 x5dy3+x5dy2sqt4-3x4dy3-3x4dy2sqt4+x4+2x3dy3+2x3dy2sqt4-4x3+x2dy3+x2dy2sqt4-x2y2+4x2y+4x2+4xy2-16xy-4y2+16y
————————————————————————————————————————————————————————— = ——————————————————————————————————————————————————————————————————————————————————————————————————————————
y • (x-2)2 • (y+sqt4)
-4 + -1 = -5
-2 + -2 = -4 That's it