Sagot :
1) (3t + 7)² = 9t² + 42t + 49
2) (y - 7)² = y² - 14y + 49
3) (a + 5)² = a² + 10a + 25
4) (x - 1)² = x² - 2x + 1
5) (4y + 6)² = 16y² + 48y + 36
6) (y - 1,5)² = y² - 3y + 2,25
7) (0,5x - 2)² = 0,25x² - 2x + 4
2) (y - 7)² = y² - 14y + 49
3) (a + 5)² = a² + 10a + 25
4) (x - 1)² = x² - 2x + 1
5) (4y + 6)² = 16y² + 48y + 36
6) (y - 1,5)² = y² - 3y + 2,25
7) (0,5x - 2)² = 0,25x² - 2x + 4
[tex](3t+7)^2=9t^2+42t+49\\(y-7)^2=y^2-14y+49
\\(a+5)^2=a^2+10a+25
\\(x-1)^2=x^2-2x+1
\\(4y+6)^2=16y^2+48y+36
\\(y-\frac{3}{2})^2=y^2-3y+\frac{9}{4}
\\(\frac{1}{2}x-2)^2=\frac{1}{4}x^2-2x+4[/tex]