baraanakash2p09r1f baraanakash2p09r1f

01-12-2017
Mathematics

contestada

A certain number added to its square is 30. Find the number

Respuesta :

tynollette tynollette

01-12-2017

x+x²=30
x²+x-30=0
(x+6)(x-5)=0
x=-6 or x=5

Answer Link

Otras preguntas

Which list of elements contains a metal, a metalloid, a nonmetal, and a noble gas? (1) Be, Si, Cl, Kr (3) K, Fe, B, F (2) C, N, Ne, Ar (4) Na, Zn, As, Sb

Which list of elements contains a metal, a metalloid, a nonmetal, and a noble gas? (1) Be, Si, Cl, Kr (3) K, Fe, B, F (2) C, N, Ne, Ar (4) Na, Zn, As, Sb

What was the Underground Railroad? Your response needs to include and explain the terms conductor, lines, station, and freight.

Which element must be present in an organic compound?(1) hydrogen (3) carbon(2) oxygen (4) nitrogen

Which of these pH numbers indicates the highest level of acidity? (1) 5 (3) 10 (2) 8 (4) 12

What can prevent a sand dune from moving?

What causes mountain ranges to form?

Solve: 2a-3b=52a−3b=5 a+b=10

A 2.0-liter aqueous solution contains a total of 3.0 moles of dissolved NH4Cl at 25°C and standard pressure. Determine the molarity of the solution.

Which is a contribution of classical Rome to modern Western civilization? A. network of long-distance paved roads B. creation of international sports competi