Question

Rozwiaż nierównosć:
1-(1-x)(-x-1)-2x>6-xkwadrat

Uprość wyrażenia:
(m+1) do kwadratu - (2m-2) do kwadratu + (2m+3) do kwadratu - (4m-4) do kwadratu
2(3-x)(1+x)-(1-2x) do kwadratu + )-2-x) do kwadratu
81-(1-x)(2+x)- 3(5-x) do kwadratu
(m-1) do kwadratu - 2 (m+2)(m-2)- 4(m+3) do kwadratu

Answer 1

1-(1-x)(-x-1)-2x>6-x^2

1-(-x-1+x^2+x)-2x>6-x^2

1+x+1-x^2-x-2x>6-x^2

2-2x>6

-2x>4

x<-2

(m+1)^2 - (2m-2)^2 + (2m+3)^2- (4m-4)^2 = m^2+2m+1-4m^2+8m-4+4m^2+12m+9-16m^2+32m-16=-15m^2+54m-10

2(3-x)(1+x)-(1-2x)^2 + (-2-x)^2 = 6+6x-2x-2x^2-1+4x-4x^2-4+4x+x^2= -5x^2 + 12x +1

81-(1-x)(2+x)- 3(5-x)^2 = 81-2-x+2x+x^2-75+30x-3x^2= 2x^2 + 31x + 4

(m-1)^2 - 2 (m+2)(m-2)- 4(m+3)^2 = m^2 - 2m + 1 - 2m^2 + 8 - 4m^2 - 24m - 36 = -5m^2 -26m - 25