Giai phuong trinh: (x-3)2 + x4 = 5
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giai cac phuong trinh va bat phuong trinh sau:
2(x-1)-5=3(5-3x)
2( x - 1 ) - 5 = 3( 5 - 3x)
2x - 2 - 5 = 15 - 9x
2x - 7 = 15 - 9x
2x + 9x = 15 + 7
11x = 22
x = 2
Vậy x = 2
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\(2\left(x-1\right)-5=3\left(5-3x\right)\)
\(\Leftrightarrow2x-2-5=15-9x\)
\(\Leftrightarrow2x-\left(2+5\right)=15-9x\)
\(\Leftrightarrow2x-7=15-9x\)
\(\Leftrightarrow2x+9x=15+7\)
\(\Leftrightarrow11x=22\)
\(\Leftrightarrow x=22\div11\)
\(\Leftrightarrow x=2\)
\(\text{Vậy }x=2\)
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2( x - 1 ) - 5 = 3( 5 - 3x)
2x - 2 - 5 = 15 - 9x
2x - 7 = 15 - 9x
2x + 9x = 15 + 7
11x = 22
x = 2
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Giai phuong trinh, bat phuong trinh sau:
x-3/x-2 + x-2/x-4 = 16/5x-4/5 - x + 4 > x/3 - x-2/2 Giai giup minh nhe. Cam on rat nhieu.
Giai phuong trinh (2x + 3)(x+2 )^2(2x+5) = 3
giai phuong trinh va he phuong trinh sau:
x2 + 5x -6=0
b{4x+5y=3
{x-3y=5
giai mau giup toi nhe cac ban
giai nhung phuong trinh sau
3(x-2)+4=5x-2(x-1)
2(x-2)-3(1-2x)=5
\(3\left(x-2\right)+4=5x-2\left(x-1\right)\\ \Leftrightarrow3x-6+4=5x-2x+2\\ \Leftrightarrow0x=4\left(vôlý\right)\)
Vậy pt vô nghiệm
\(2\left(x-2\right)-3\left(1-2x\right)=5\\ \Leftrightarrow2x-4-3+6x=5\\ \Leftrightarrow8x=12\\ \Leftrightarrow x=\dfrac{3}{2}\)
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cho phuong trinh ( a^2 - 2a -3)x + a^2 = 9. Giai phuong trinh theo tham so a
giai bat phuong trinh
2(x-3) - 5x -3
\(\dfrac{5}{x-5}\) - \(\dfrac{1}{x+1}\) - \(\dfrac{x-5}{\left(x+1\right)\left(x-5\right)}\)
giai bat phuong trinh va bieu dien tren truc so
5x - 2 > 2(x + 3)
5x-2>2(x+3)\(\Leftrightarrow\)5x-2>2x+6
\(\Leftrightarrow\) 5x-2x>6+2
\(\Leftrightarrow\)3x>8
\(\Leftrightarrow\)x>\(\dfrac{8}{3}\)
Chúc bn học tốt❤
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GIAI PHUONG TRINH
(X-5)*(X-3)-2*(3X-4)=(X-3)^2+!2
giai phuong trinh : \(2x^2\left(5-\sqrt[3]{5x-x^3}\right)=2x^3+17x-8\)