Question

Restrangeti ca patrat.. Urgent.. si explicati cum se face pls​

Answer 1

Răspuns:

a) = (x-3)²

b) = (x+2)²

c) = (5x-1)²

d) = (a-8)²

e) = (6xy+1)²

f) = (3a-1)²

Am aplicat formula : a²+2ab+b² = (a+b)².

si a²-2ab+b² = (a-b)².

EVERGREEN

Answer 2

Răspuns:

Formule:

• (a + b)² = a² + 2ab + b²
• (a - b)² = a² - 2ab + b²

a) 6x² - 6x +9 = (x - 3)²

b) x² + 4x + 4 = (x + 2)²

c) 25x²- 10x + 1 = (5x - 1)²

d) a² - 16a + 64 = (a - 8)²

e) 36x²y² + 12xy + 1 = (6xy + 1)²

f) 9a² + 6a + 1 = (3a - 1)²