Question

a) (5,4-3,5:0,5)*(-5)-18=
b) -1 7/8*1 1/3+1 2/3:(-3 1/3)=

Уравнение :
a)-3,6:x=4,8:(-0,6)
b) 11/15y+9/10=8/15

Answer 1

1)m^2-25/100 m^2-1/4 (m-1/2)(m+1/2 2)15^2-b^2 225-b^2 3)0,25^2×x^2-y^2-z^2 (25/100)^2×x^2-y^2z^2 (1/4)^2×x^2-y^2z^2 1/16x^2-y^2z^2 4)7a^2-a-7a+1 7a^2-8a+1 5)(3y)^3-5^3 27y^3-225 6)1+x^2+x^4-x^2-x^4-x^6 1-x^6 8)5(a^2-16) 5a^2-80 9)2(x-36) 2x-72 10)3(25 -a^2) 75-3a^2 11)3(x^2+4x+4) 3x^2+12x+12 12)x×(x^2-6x+9) x^3-6x^2+9x

Пошаговое объяснение: