Question

descompuneti in factori x²-144= x²-49= a²-36= t²-36= va roggggggg ​

Answer 1

${x}^{2} - 144 = {x}^{2} - {12}^{2} = (x - 12) \times (x + 12)$

${x}^{2} - 49 = {x}^{2} - {7}^{2} = (x - 7) \times (x + 7)$

${a}^{2} - 36 = {a}^{2} - {6}^{2} = (a - 6) \times (a + 6)$

${t}^{2} - 36 = {t}^{2} - {6}^{2} = (t - 6) \times (t + 6)$

Answer 2

Răspuns:

Explicație pas cu pas:

x²- 144 = x²- 12² = (x + 12) · (x - 12)

x²- 49 = x²- 7² = (x + 7) · (x - 7)

a² - 36 = a²- 6² = (a + 6) · (a - 6)

t² - 36 = t²- 6² = (t + 6) · (t - 6)

✳ Am folosit formula:

(a + b) · (a - b) = a² - b²

  sau  

a² - b² = (a + b) · (a - b)