1) (x - 2.5)^2 = 49;
(x - 2.5)^2 - 49 = 0;
(x - 2.5 - 7)(x - 2.5 + 7) = 0;
(x - 9.5)(x + 4.5) = 0;
a) x = 9.5;
b) x = -4.5;
2) (3 - 2x)^2 = 0.04;
(3 - 2x)^2 - 0.04 = 0;
(3 - 2x - 0.2)(3 - 2x + 0.2) = 0;
(2.8 - 2x)(3.2 - 2x) = 0;
a) 2x = 2.8;
x = 1.4;
b) 2x = 3.2;
x = 1.6.
1) (x - 2.5)^2 = 49;
(x - 2.5)^2 - 49 = 0;
(x - 2.5 - 7)(x - 2.5 + 7) = 0;
(x - 9.5)(x + 4.5) = 0;
a) x = 9.5;
b) x = -4.5;
2) (3 - 2x)^2 = 0.04;
(3 - 2x)^2 - 0.04 = 0;
(3 - 2x - 0.2)(3 - 2x + 0.2) = 0;
(2.8 - 2x)(3.2 - 2x) = 0;
a) 2x = 2.8;
x = 1.4;
b) 2x = 3.2;
x = 1.6.