1
у⁾=(√(1-х))⁾= ((1-х)¹⁾₂)⁾=1/2(1-х)¹⁾₂-¹ * (1-х)⁾=1/2(1-х)⁻¹⁾₂ * (-1) = - --------
2(1-х)
1) 1.21 - х^2= (1,1 - x)(1,1 + x)
2) 25/64 - p^2= (5/8 - p)( 5/8 + p)
<span>ab+3b-5a-15=(ab-5a)+(3b-15)=a(b-5)+3(b-5)=(b-5)(a+3)</span>
(x-1)^2
x^-2x•1+1^2
x^2-2x+1