1) 4a^2 + 4a/5 + 1/25 = (2a)^2 + 2*(2a)*(1/5) + (1/5)^2 = (2a + (1/5))^2.
2) 16a^4 - 24a^2b^3 + 9b^6 = (4a^2)^2 - 2*(4a^2)*(3b^3) + (3b^3)^2 =
= (4a^2 - 3b^3)^2.
3) 4x^2 - 3x + 6 = ((2x)^2 - 2*(2x)*(3/4) + (3/4)^2) + 6 - (3/4)^2 =
= (2x - (3/4))^2 + 6 - (9/16) = (2x - (3/4))^2 + (87/16).
1) = (2а)² + 2·2а·1/5 + (1/5)² = (2а+1/5)² = (2а+0,2)²
2) = (4а²)² - 2·4а²·3b³ + (3b³)² = (4a² - 3b³)²
3) = ((2x)² - 2·2x·0,75 + (0,75)²) + 5,4375 = (2х-0,75)² + 5,4375
1) 4a^2 + 4a/5 + 1/25 = (2a)^2 + 2*(2a)*(1/5) + (1/5)^2 = (2a + (1/5))^2.
2) 16a^4 - 24a^2b^3 + 9b^6 = (4a^2)^2 - 2*(4a^2)*(3b^3) + (3b^3)^2 =
= (4a^2 - 3b^3)^2.
3) 4x^2 - 3x + 6 = ((2x)^2 - 2*(2x)*(3/4) + (3/4)^2) + 6 - (3/4)^2 =
= (2x - (3/4))^2 + 6 - (9/16) = (2x - (3/4))^2 + (87/16).
1) = (2а)² + 2·2а·1/5 + (1/5)² = (2а+1/5)² = (2а+0,2)²
2) = (4а²)² - 2·4а²·3b³ + (3b³)² = (4a² - 3b³)²
3) = ((2x)² - 2·2x·0,75 + (0,75)²) + 5,4375 = (2х-0,75)² + 5,4375