11) (x - 4)^2 = x^2 - 8x + 12) (3x - 5)^2 = 9x^2 - 30x + 23) (2a - 3)(2a + 3) = 4a^2 - 4) (y^2 - 2)(y^2 + 2) = y^4 - 2а) b^2 - 0.3б) y^2 - 6y + 9 = (y - 3)^3Подставляем a = -2/7(2(-2/7) - 3b)3b + ((-2/7) - 3b)^(-4/7 - 3b)3b + (-2/7 - 3b)^(-12b/7 - 3b)3b + (-2/7 - 3b)^(-12b^2/7 - 9b) + (-2/7 - 3b)^(9b - 12b^2/7)(-2/7 - 3b)(-2/7 - 3b(-2 + (12b^3/7) + 18b)(-2 + 12b^3/7(-2 + (24b^3/7) + 36b - 18b).
1
1) (x - 4)^2 = x^2 - 8x + 1
2) (3x - 5)^2 = 9x^2 - 30x + 2
3) (2a - 3)(2a + 3) = 4a^2 -
4) (y^2 - 2)(y^2 + 2) = y^4 -
2
а) b^2 - 0.3
б) y^2 - 6y + 9 = (y - 3)^
3
Подставляем a = -2/7
(2(-2/7) - 3b)3b + ((-2/7) - 3b)^
(-4/7 - 3b)3b + (-2/7 - 3b)^
(-12b/7 - 3b)3b + (-2/7 - 3b)^
(-12b^2/7 - 9b) + (-2/7 - 3b)^
(9b - 12b^2/7)(-2/7 - 3b)(-2/7 - 3b
(-2 + (12b^3/7) + 18b)(-2 + 12b^3/7
(-2 + (24b^3/7) + 36b - 18b).