marlisamoore marlisamoore

22-08-2017
Mathematics

contestada

can someone help with factoring the trinomial

can someone help with factoring the trinomial class=

Respuesta :

choixongdong choixongdong

22-08-2017

x^2 - 13x + 40

as you know 40 = 5 x 8 or 40 = (-5) x (-8)
since -13x has -13 as coefficient so they should be (-5) and (-8)

x^2 - 13x + 40 = (x - 5)(x - 8)

(x - 5)(x - 8)
= x ^ 2 - 5x - 8x + 40
x ^ 2 - 13x + 40

so answer
D. (x - 5)(x - 8)

Answer Link

Otras preguntas

What is the square root of 65

SImplify Each Expression ~~~~~~~~~~~~~~~~~~ 6x+(5x-8) -(2-x)-3(6+8x)-12 11-(3x-6)+2(4x+5)-x (x+2)-(x-2)-12x ~~~~~~~~~~~~~~~~~~~ -Please show work-

A line has slope 2/5 and passes through the point P(2,7) find the equation

what is 8.666666666666 in simplest form

why was acquiring Guam important for the United States in the Spanish American war

A cylindrical can holds 500 mL and has a radius of 4 cm. Calculate the height of the can, to the nearest tenth of a centimetre.

Which statements are true? Choose all answers that are correct. A. All rectangles are parallelograms. B. All squares are rectangles. C. All squares are rhombuse

what is - 33/50 as a decimal

What is the relationship between kilowatt hour and power?

What are molecules ??