Y`=6x²-6x-36=6(x²-x-6)=0
x1+x2=1 U x1*x2=-6⇒x1=-2 U x2=3
+ _ +
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возр -2 убыв 3 возр
возр x∈(-≈;-2) U (3;≈)
4x^2-x=0
x(4x-1)=0
x1=0
4x-1=0
4x=1
x=0,25
x2=0.25
3,9хb¹⁴ * (-5)хbd - 4,55kn * 15k³n = -19,5x²b¹⁵d - 68,25k⁴n²
3m8y - 2n3b - 0,2y12m + b12n - 12ym + 13nb =
= 24my - 6nb - 2,4my + 12nb - 12my + 13nb = 9,6my + 19nb,
(18 4/5 а - 2/13 а²) + (1/13 а² - 1 4/5 а) = 18 4/5 а - 2/13 а² + 1/13 а² - 1 4/5 а =
= (18 4/5 а - 1 4/5 а) - (2/13 а² - 1/13 а²) = 17а - 1/13 а²
А
m+2√m+n²+m-2√m+n²=2m+2n²
б
(m^1/4-2n^1/3-m^1/4-2n^1/3)(m^1/4-2n^1/3+m^1/4+2n^1/3)=
=-4n^1/3*2m^1/4=-8m^1/4n^1/3
в
m-√n
г
m^3/2-n³