1. Mathematics SL
(2 years course)
Paper 1: non calculator
Section A: Short questions
Section B: Longer questions
Paper 2: with GDC
.
Exploration
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2. www.evmaths.jimdo.com
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3. Algebra Revision
By the end of the lesson you should be able to:
• Apply the basic rules ( square of binomial,
difference of two squares, common factor) to
simplify or/and factorise expressions.
• Use factorisation to solve equations.
Revision algebra Y9.ppt
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4. Rewrite without brackets:
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5. Mar 2­06:15 p.m.
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6. Remove the brackets to simplify:
2 ( 4 ­ x ) ­ 5 ( x ­ 2 )=
­ ( 2 x + 7 ) ­ 2 ( x ­ 3 ) =
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7. (x + 6 )2 ­ 2 ( x ­ 3 ) =
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8. 2 x ( x ­ 5 ) ­ ( x + 5 )2=
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9. ( 2 x + 7) ( 2 x ­ 7 ) =
( a + b ) ( a ­ b ) =
( 2x + 5 )2 =
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10. Factorise:
2 a + a b ­ a z =
p3 + 2 p2 =
5 x a ­ x =
­20 ­ 5 a =
­ a ­ a2 =
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11. Factorise:
2 a + a x + 2 b + b x =
3 x ­ 3 y + ax­ a y =
t2 ­ 3 t ­ t + 3=
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12. Simplify:
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13. Difference of two squares
Expand
(a + b ) ( a ­ b ) a2 ­ b2
Factorise
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14. Square of a binomial
Expand
(a + b )2 a2 + 2ab + b2
Factorise
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15. Factorise these trinomials:
x2 + 7 x + 12 = ( x ) ( x )
x2 + 5 x + 6 =
x2 ­ 12 x + 20 =
x2 ­ 9 x ­ 36 =
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16. 2x2+7x+5
3x2+16x+21
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17. We use factorisation to solve equations:
x2 ­ x ­ 1 2 = 0
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18. 2x2 + 5 x + 3 = 0
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19. 2
x + 7 x = 0
4x2 ­ 25 = 0
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20. x 3 ­ 25 x = 0
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21. Solve worksheet:
"Algebra Revision"
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22. Attachments
fx9860emulator.exe
Revision algebra Y9.ppt