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5x2 + 8x = 7
5x2 + 8x - 7 = 0
This cannot be factorised so the solutions need to be determined using the quadratic formula
The solutions are {-8 ± sqrt[82 - 4*5*(-7)]}/(2*5)
= {-8 ± sqrt[64 + 140]}/10
= {-8 ± sqrt[204]}/10
= -2.22829 and 0.62829 (to 5 dp)
What else can I help you with?
What are the solutions for 5x2-2x plus 16 equals 4x2 plus 6x?
5x2-2x+16=4x2+6x ,or x2-8x+16=0, or x2-2(x)(4)+(4)2=0, or (x-4)2=0, or (x-4)(x-4)=0, or x=4
How many solutions are there for the equation x2 plus 16 equals 8x?
2 this Domo
How many solutions does the linear system -8x plus 2y equals 6 and -4x plus y equals 3 have?
Two solutions and they are:- x = 0 and y = 3
How many solutions are there in 8x plus 11 equals 8x plus 8?
That equation has no solutions.There's no number that can go in place of 'x' that canmake the equation a true statement.
How do you factor 5x2 plus 8x - 21?
(5x - 7)(x + 3)
What are the solutions for 5x2-2x plus 16 equals 4x2 plus 6x?
5x2-2x+16=4x2+6x ,or x2-8x+16=0, or x2-2(x)(4)+(4)2=0, or (x-4)2=0, or (x-4)(x-4)=0, or x=4
How many solutions are there for the equation x2 plus 16 equals 8x?
2 this Domo
How many solutions does the linear system -8x plus 2y equals 6 and -4x plus y equals 3 have?
Two solutions and they are:- x = 0 and y = 3
Y-8x plus 9y equals?
Y-8x plus 9y equals 10y-8x.
How many solutions are there in 8x plus 11 equals 8x plus 8?
That equation has no solutions.There's no number that can go in place of 'x' that canmake the equation a true statement.
How do you factor 5x2 plus 8x - 21?
(5x - 7)(x + 3)
What is 5x squared equals 8x?
5x2=8x Divide with x on both sides5x= 8 Solve xx=8/5
9x2 plus 2x plus 5-5x2 plus 8x-6?
It is 4x^2 + 10x - 1
How do you write 8x plus 4y equals 5?
8x plus 4y equals 5 is 8x + 4y = 5.
Find the factors of x3-5x2 8x-4 how to solve this equation?
5x2-8x-4
What are solutions to the equation x2-3x plus 27 equals 8x-3?
x = 5 or x = 6
Is y equals 8x-3 parallel to 8x plus y equals 3?
No.
