# 9th grade math help! trinomials?

trinomials
^ symbol for squared
10 points for all answers thanks (:

x^2 + 7x + 10

x^2 - 8x +7

x^2 -14x - 20

x^2 - 6x +27

x^2 + x - 72

3x^2 + 18x + 24

4x^2 + 52x - 48

x^2 + 6x + 8

x^2 - 10x + 25

x^2 - 8x - 20
Factorise them

x2+ 7x + 10

x2 + 5x + 2x + 10

x(x + 5) + 2(x + 5)

Take out common term x + 5

(x + 5)(x + 2).

x2 - 8x + 7

x2 - 7x - x  + 7

x(x - 7) -1(x - 7)

Take out  common term (x - 7)

(x - 7)(x - 1).

x2 + x - 72

x2 + 9x - 8x - 72

x(x + 9) -8(x + 9)

Take out common term (x + 9)

(x + 9)(x - 8).

3x2 + 18x + 24

3x2 + 12x + 6x + 24

3x(x + 4) + 6(x + 4)

Take out common term x + 4

(x + 4)(3x + 6)

3(x + 4)(x + 2).

x2 + 6x + 8

x2 + 4x + 2x + 8

x(x + 4) + 2(x + 4)

Take out common term x + 4

(x + 4)(x + 2).

x2 - 10x + 25

x2 - 5x - 5x + 25

x(x - 5) - 5(x - 5)

Take out common term x - 5

(x - 5)(x - 5)

(x - 5)2 .

x2 - 8x - 20

x2 - 10x + 2x - 20

x(x - 10) + 2(x - 10)

Take out common term x - 10

(x - 10)(x + 2).

Pressume that

x^2 - 14x - 120

x^2 - 20x + 6x - 120

x(x - 20) + 6( x - 20)

Take out common term x - 20

(x - 20)(x + 6).

Pressume that

x^2 - 6x - 27

x^2 - 9x + 3x - 27

x(x - 9) + 3( x - 9)

Take out common term x - 9

(x - 9)(x + 3).

Pressume that

4x^2 + 52x + 48

4x^2 + 48x + 4x + 48

4x(x + 12) + 4( x + 12)

Take out common term x + 12

(x + 12)(4x + 4)

4(x + 1)(x + 12).