Question

4. Adevărat sau Fals? Pentru orice numere reale a, b, x, y: a)(a + b)² = a² + b²; A/F c) (5-x)=x²-10x+25; e) (-a-b)² = (a + b)²; g) (x+2)² = x² + 4; i) (-3x+5)= 25-30x+9x². b) (x+3)² = x² - 6x +9; d) (x - y)² = (y + x)²; (√6-x²)=x²-2√6x+6; 1) h) (2x - y)² = 4x² - y² даю корону dau coroane si 5 stele

​

Answer 1

a)FALS

b)ADEVARAT

c)ADEVARAT

d)FALS

e)FALS

f)ADEVARAT

g)FALS

h)FALS

i)ADEVARAT

Answer 2

Răspuns:

a) F

b) F

c) F

d) F

e) A

f) F

g) F

h) F

i) F