Download presentation

Presentation is loading. Please wait.

Published byFatima Ellington Modified over 3 years ago

1
3 ( x + 2 ) = 3 x + 6 2 ( 3 x - 5 ) = 6x - 10 xxx - 5 M May

2
2x + 6 2x = 2 x x 6 = 2 x 3 = 2 ( x + 3 ) 10 x - 35 10 x = 5 x 2 x x 35 = 5 x 7 = 5 ( 2x - 7) M May

3
Factorise 7y + 148z - 129x + 152x - 24 = 7(y + 2)= 4(2z - 3)= 3(3x + 5)= 2(x - 12) 5x + 10x 2 4x 2 + 10x2x 2 + 4x2x 3 - 3x 2 = 5x(1 + 2x)= 2x(2x + 5)= 2x(x + 2)= x 2 (2x - 3) 5.x.1 2.5.x.x 2.2.x.x. 5.2.x. 2.x.x 2.2.x 2.x.x.x 3.x.x 14xy + 49y 2 3x 2 - 12x = 7y(2x + 7y)= 3x(x - 4) 8x 2 + 4x = 4x(2x - 1) M May

4
( x + 4 ) ( x + 7 ) Multiply out the brackets: ( x - 4 ) ( x - 7 ) ( x + 4 ) ( x - 7 )( x - 4 ) ( x + 7 ) = x 2 + 7 x + 4 x + 28 = x 2 + 11 x + 28 = x 2 - 7 x - 4 x + 28 = x 2 - 11 x + 28 = x 2 - 7 x + 4 x - 28 = x 2 - 3 x - 28 = x 2 + 7 x - 4 x - 28 = x 2 + 3 x - 28 M May

5
Multiply out these brackets (x + 2) (x + 7)(x - 2) (x + 7)(x + 2) (x - 7) (x - 2) (x - 7)(x - 6) (x - 9)(x - 1) (x + 1) = x 2 + 7 x + 2 x + 14 = x 2 + 9 x +14 = x 2 + 7 x - 2 x - 14 = x 2 + 5 x -14 = x 2 - 7 x + 2 x - 14 = x 2 + 5 x -14 = x 2 - 7 x - 2 x + 14 = x 2 - 9 x +14 = x 2 - 9 x - 6 x + 54 = x 2 - 15 x +54 = x 2 + x - x - 1 = x 2 - 1 M May

6
To factorise (putting the brackets back in!) x 2 + 9 x + 14 = ( ) ( ) x x 14 = 1 x 14 2 x 7 Add + 2 + 7 = +9 +2 +7 So = ( x + 2 ) ( x + 7 ) Always check by mutliplying out. x 2 + 9 x + 14 = ( x + 2 ) ( x + 7 ) M May

7
Factorise x 2 + 3 x + 2x 2 - 5 x + 6x 2 + 3 x - 10 x 2 - 7 x + 10x 2 + x - 12x 2 - 4 x - 12 = ( x + 2)( x +1)= ( x - 2)( x - 3)= ( x - 2)( x + 5) = ( x - 2)( x - 5)= ( x - 3)( x + 4)= ( x - 6)( x + 2) (+) 6 = 1 x 6 2 x 3 - 2 - 3 = -5 (-) 10 = 1 x 10 2 x 5 +5 - 2 = +3 (+) 10 = 1 x 10 2 x 5 -5 - 2 = -7 (-) 12 = 1 x 12 2 x 6 3 x 4 4 - 3 = 1 (-) 12 = 1 x 12 2 x 6 3 x 4 2 - 6 = -4 M May

Similar presentations

OK

Multiplication X 1 1 x 1 = 1 2 x 1 = 2 3 x 1 = 3 4 x 1 = 4 5 x 1 = 5 6 x 1 = 6 7 x 1 = 7 8 x 1 = 8 9 x 1 = 9 10 x 1 = 10 11 x 1 = 11 12 x 1 = 12 X 2 1.

Multiplication X 1 1 x 1 = 1 2 x 1 = 2 3 x 1 = 3 4 x 1 = 4 5 x 1 = 5 6 x 1 = 6 7 x 1 = 7 8 x 1 = 8 9 x 1 = 9 10 x 1 = 10 11 x 1 = 11 12 x 1 = 12 X 2 1.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Module architecture view ppt on ipad Ppt on nazism and hitler in germany Ppt on online shopping cart project in java Ppt on safe construction practices for class 10 Ppt on different types of soil Ppt on cloud computing in ieee format Ppt on water scarcity images Ppt on pricing policy in marketing Ppt on natural resources management Ppt on gujarati culture india