Giai phuong trinh sau:5x^4-2 x^2 +3x^2√x^2 +2=4
giai phuong trinh x^2-x+6=4 can 3x-2
giai cac phuong trinh va bat phuong trinh sau:
2(x-1)-5=3(5-3x)
giai phuong trinh \(\sqrt{5-x^6}-\sqrt{3x^4-2}=1\)
1)Giai phuong trinh:
a) x4+4x2-5=0
b)Cho phuong trinh: x2-2(m+1)x+m2+3m-4=0(1)
Giai phuong trinh khi m=2Chung minh phuong trinh luon co nghiem voi moi m.Goi x1,x2 la nghiem cua phuong trinh,tim m de thoa man dieu kien:x12+x22=10Giai phuong trinh:
\(28+\sqrt[3]{x^2}=3x+2\sqrt[3]{x}+\left(x-4\right)\sqrt{x-7}\)
Giai phuong trinh: \(\sqrt{5-x^6}=\sqrt[3]{3x^4-2}+1\)
a) Cho phuong trinh x2 +mx+1=0. Tim dieu kien cua m de phuong trinh co nghiem kep. Tinh nghiem kep do
b) Khong giai phuong trinh, chung to phuong trinh 2x2 - 3x - 5 = 0co 2 nghiem phan biet x1 , x2. Tinh ( x1 - x2 )
giai phuong trinh
x+ \(\sqrt{4-x^2}\)=2+3x\(\sqrt{4-x^2}\)
