Question

помогите пожалуйста​

Answer 1

1.а) 529 (584+416) = 529 * 1000 = 529000

б) 327(1962 - 1462) = 327 * 500 = 163500

в) $\frac{126*124(126-124)}{126*124(126+124)} = \frac{126*124*2}{126*124*250} = \frac{2}{250} = \frac{1}{125}$

г) $(\frac{5}{6} (458-440))^{2} = (\frac{5*18}{6})^{2} = (5*3)^{2} = 15^{2} = 225$

д) 999(999+1) = 999*1000 = 999000

2. a). 5(a-b)

б) 4(6a+250b)

в) k(m+n-3p)

г) x(4y+1-8y) = x(1-4y)

3. a)$7a^{2}b^{2}(5b-3a)$

б) $6xy^{2} (y^{2} - 3x^{2} +22xy)$

в) $\frac{1}{6} a(a-a^{2} +5)$