(m²-2m)²-1 = (m² - 2m - 1)(m²-2m+1)
16-(m² +4m)² = 4^2 -(m² +4m) = (4 - m²- 4m)(4 + m² + 4m)
<span>1,2(b+1,2)+(0,5-b)(b+0,5)-(b+1,3)(1,3-b)=1,2b+1,44+(0,5-b)(0,5+b)-(1,3+b)(1,3-b)=1,2b+1,44+0,5b^2-b^2-(1,3^2-b^2)=1,2b+1,44+0,5^2-b^2-((13/10)^2-b^2)=1,2b+1,44+0,5^2-b^2-(13/10)^2+b^2=1,2b+36/25+(1/2)^2-169/100=1,2b+36/25+1/4-169/100=1,2b+0=1,2b
1,2b=1,2*(-5/6)=-1</span>
1.4 (a^2/3)/(a^1/6)=a^(2/3-1/6)=a^((4-1)/6)=a^(3/6)=a^(1/2);
1.5 (√x-9)/(⁴√x-3)=((⁴√x)²-3²)/(⁴√x-3)=(⁴√x-3)·(⁴√x+3)/(⁴√x-3)=(⁴√x+3);
1) f(2) = 3
2k = 3
k = 1,5
2) f(3) = 15
3k = 15
k = 5
3) f(-5) = 10
- 5k = 10
k = - 2
14) - с - 7,5 (Ответ В)
Остальное затрудняюсь, простите.