Ask a New Question

Asked by carmen

completing the square

2m^2-m-15=0

using the quadratic formula

2y^2-3y-6=0
12 years ago

Answers

Reiny
2m^2 - m = 15
m^2- (1/2)m = 15/2
m^2 - (1/2)m + 1/16 = 15/2 + 1/16
(m - 1/4)^2 = 121/16
m - 1/4= ± 11/4
m = 1/4 ± 11/4
m = 3 or m = -5/2

the second one is simply subbing into the formula and number-crunching.
let me know what you got.
12 years ago

Related Questions

When completing the square: 5x^2 + 10x - 20 5 ( x^2 + 2x) -20 = 0 5 ( x + 1)^2 -15 = 0 Did I d... using completing the square find the vertex and axis of symmetry for y = x^2 - 6x + 7 i cant c... completing the square 3x^2 +15 -33 =0 a=3 b=15 c=-33 -15+or- sqrt225-4*3*-33/2*3 -15+or-sq... Completing the square: Which of the following is a solution x^2 + 14x + 112 = 0? If necessary roun... 1)Use completing the square method to solve the equation; 3x^2-7x+2=0 2)Solve the equation; 6a=5+4/... Using completing the square method solve for x in the following X+2x+8=0 Using the completing the square method solve 5x = 7x + 3 Completing the Square & the Quadratic Formula Quick Check 1 of 51 of 5 Items Question Complete th...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use