a)x2 + 12x + 36 =(x + 6)2
2 + 81 + 18x =(x + 9)2
2- 16x + 64 =(x - 8)2
2
a)x2+12x+.36..=(..x+6..)2
b)x2+81+.18x..=(..x+9..)2
c)x2-16x+.64..=(..x-8..)2
d)16-2x+...=(....)2
Câu cuối có bị lỗi không nhỉ ?
\(a,...+....36=\left(x-6\right)^2\)
\(b,....+1640,25=\left(x+40,5\right)^2\)
\(c,....+64=\left(x-8\right)^2\)
\(d,...+\left(\dfrac{1}{16}x\right)^2=\left(4-\dfrac{1}{4}x\right)^2\)
a) x2 + 12x + 36 = (x + 6)2
b) hinh nhu de bi sai ne minh sua lai : x2 + 18x + 81 = (x + 9)2
c) x2 - 16x + 64 = (x - 8)2
d) 16 - 2x + x2 = (4 - x)2
Chuc ban hoc tot
