explain trinomial factoring

Algebra
Tutor: None Selected Time limit: 1 Day

X2+19×+90

May 28th, 2015

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May 28th, 2015

Trinomial: Trinomial is a type of expression which is composed of three terms. e.g. a - b + 4, x3 - 3xy - y3

Solution:

x²+19x+90

= x² +10x + 9x + 90

= x(x+10)+9(x+10)

=(x+10)(x+9)

These are two factors

May 28th, 2015

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