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Giải pt: (x2+x-6)(x2+9x+14) = 300

(2x-5)(3x+1) = 4x2-25

Giải các phương trình sau

a) \(\dfrac{5x+6}{7}\)-\(\dfrac{3x+1}{4}\)=\(\dfrac{x+16}{5}\)

b) \(\dfrac{x+5}{4}-\dfrac{2x-5}{3}=\dfrac{6x-1}{3}+\dfrac{2x-3}{12}\)

c)\(\dfrac{x-3}{4}-\dfrac{2x+5}{7}-\dfrac{x-1}{2}=1 \)

d) \(1- \dfrac{2x-1}{9}=\dfrac{x}{2}-\dfrac{13x-10}{6}\)

(5x2-2x+10)2=(3x2+10x-8)2

Tim a, b biet

160a + 232b = 27,6

3a + 4b = 0,5

Giải phương trình:

a. |x+3| + |x-1| = 6

b. |x-2| + |x-3| + |2x-8|=9

c. |x+1| + |2x-1| + 2x=3

-3(x+3)+6=4x-2

2(x+1)+6=12x-2

5-3(x-2)=9-2x

a) x ( x + 3 ) - 2x - 6 = 0

b) 7 - ( 2x + 4 ) = - ( x + 4 )

c) x2 - 4x + 4 = 9

d) ( x2 - 6x + 9 ) - 4 = 0

Giải các pt sau

a. 2(x-3)(x+1)=(2x+1)(x-3)-12

b. 12-3(x-2)2=(x+2)(1-3x)+2x

Tìm nghiệm nguyên dương x ; y của phương trình :

x4 + 2x3 + 2x2 - y2 + x + 3 = 0

GIÚP MK VS !!!