Tìm nghiệm của phương trình x^2-2x-4y^2-4y = 0.

We know that $x^2 - y^2 = (x + y)(x - y)$. Substituting, we see that $x ... Factoring, we find that $x^2 - 2x - 3 = (x - 3)(x + 1) = 0.$ Therefore, $p ... Solve the simultaneous equations x + 4y = 1 and 2x − y = 3. • We can rearrange the first equation for x and substitute into the second equation; x = 1 − 4y so 2 ... Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, ... 2 G(t, x)=3+² +46 +2 ох. 2. ว. 3+²+4t+2. J. ядай ox (x-1). 2. (x-1)2. Page 2 ... So it becomes μ(3x+2y=2x-y) = μ'(x) (x² + xy). 24. =>. C. = (x+4) if x to & μч0. ) Volume = √ √ S (3-3x-241) dy dx. Y=2-2x. = S (3Y-3xY~ ~²) | x - - xxx. O. =S (3x²-6x+3) dx. (x³-3x²+3x) 16 = 1 dx. X. 2. 07. Y=x3 z = 1/2 (6-6x-3×). S = 3-3x- ... (3x - 1)y00 - (3x + 2)y0 - (6x - 8)y = 0. By using the reduction of order formula, a second solution y2(x) is. (a) 3xe−x. (correct). (b) xex. (c) xe2x. (d) x2e− ... y. (2x+5y+3) = 5 and x. (5x 4y+2) = 5, so sin e these are equal, the ODE is exa t. The integral will have the form F(x; y) = R. 2x + 5y + 3dx = x2 + 5xy + 3x + ... Dec 4, 2014 ... "After we've integrated over y, we're left with a doman in the x-z plane: X=_√4-22. 2 x²+2² = 4. X-2. · x = + √ 4-2² ... Mar 5, 2021 ... ... y) = x2 + y2 - 2x - 4y is i + j. Find all points at which the direction of the fastest change of the function f (x, y) = x2 + y2 - 2x - 4y is i ... = ∆4y(0) = 24 andso b4 = 1. 6b3. = ∆3y(0) = 36 andso ... y = x(4) + 6x(3) + 4x(2) - 2x + 6. = x(x - 1)(x - 2)(x - 3) + 6x(x - 1)(x - 2) + 4x(x - 1) - 2x + 6.