Examples with solutions for The Quadratic Formula: Equations with variables on both sides

Exercise #1

Solve the following equation:

x2+3x3=x x^2+3x-3=x

Video Solution

Answer

x1=1 x_1=1 , x2=3 x_2=-3

Exercise #2

What is the value of x?

x4x3=2x2 x^4-x^3=2x^2

Video Solution

Answer

x=1,2,0 x=-1,2,0

Exercise #3

x3=x2+2x x^3=x^2+2x

Video Solution

Answer

x=0,1,2 x=0,-1,2

Exercise #4

Solve the following equation:

3x217x+28=x+4 3x^2-17x+28=x+4

Video Solution

Answer

x1=4 x_1=4 , x2=2 x_2=2

Exercise #5

Solve the following equation:

4x2+9x5=74x 4x^2+9x-5=7-4x

Video Solution

Answer

x1=34 x_1=\frac{3}{4} x2=4 x_2=-4

Exercise #6

Given the following equation, find its solution

7x2+3x+8=9x+3 7x^2+3x+8=9x+3

Video Solution

Answer

No solution

Exercise #7

Solve the following equation:

x2+3x4=2x2 x^2+3x-4=2x^2

Video Solution

Answer

No solution

Exercise #8

Solve the following equation:

x2+x2=2x22x4 -x^2+x-2=-2x^2-2x-4

Video Solution

Answer

x1=2,x2=1 x_1=-2,x_2=-1

Exercise #9

Solve the following equation:

10x265x+135=4x2+13x45 10x^2-65x+135=4x^2+13x-45

Video Solution

Answer

x1=10 x_1=10 x2=3 x_2=3

Exercise #10

Solve the following equation:

2x2+6x12=4x2+19x5 -2x^2+6x-12=-4x^2+19x-5

Video Solution

Answer

x1=7 x_1=7 , x2=12 x_2=-\frac{1}{2}

Exercise #11

Find X

(3x+1)2+8=12 (3x+1)^2+8=12

Video Solution

Answer

x1=13,x2=1 x_1=\frac{1}{3},x_2=-1

Exercise #12

Solve the following equation:

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

Video Solution

Answer

x1=1,x2=9 x_1=-1,x_2=-9

Exercise #13

Given the equation. Find its solution

13x2+4x=8(x+3)2 13x^2+4x=8(x+3)^2

Video Solution

Answer

x1=10.21,x2=1.41 x_1=10.21,x_2=-1.41

Exercise #14

Solve the following equation:

x3+1(x1)2=x+4 \frac{x^3+1}{(x-1)^2}=x+4

Video Solution

Answer

x=3,12 x=3,\frac{1}{2}

Exercise #15

Solve the following equation:

(x+2)2=(2x+3)2 (x+2)^2=(2x+3)^2

Video Solution

Answer

x1=1,x2=53 x_1=-1,x_2=-\frac{5}{3}

Exercise #16

Solve the following equation:

(x4)2+3x2=16x+12 (x-4)^2+3x^2=-16x+12

Video Solution

Answer

x=1 x=-1

Exercise #17

Find X

7x+1+(2x+3)2=(4x+2)2 7x+1+(2x+3)^2=(4x+2)^2

Video Solution

Answer

1±338 \frac{1\pm\sqrt{33}}{8}

Exercise #18

Solve the equation

2x22x=(x+1)2 2x^2-2x=(x+1)^2

Video Solution

Answer

Answers a + b

Exercise #19

Solve the following equation:

(x5)25=10+2x (x-5)^2-5=10+2x

Video Solution

Answer

x1=6+1042,x2=61042 x_1=6+\frac{\sqrt{104}}{2},\\x_2=6-\frac{\sqrt{104}}{2}

Exercise #20

Solve the following equation:

(x5)25=12+2x (x-5)^2-5=-12+2x

Video Solution

Answer

x1=8,x2=4 x_1=8,x_2=4