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Mathematics Higher Level Robert Joinson

Mathematics Higher Level Robert Joinson

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©Sumbooks2002<strong>Higher</strong> <strong>Level</strong>10. SimplifyingExercise 1Simplify each of the following by expanding the brackets where necessary1) 7x – 3x2) 5y – 7y3) – 8y + 3y4) – 6x – 7x5) 4x + 3y + 5x + 6y6) 9y + 7x – 11y – 4x7) – 6x + 3y – 4x + 2y8) – 7x – 6y + 3x – 4y9) 2ab + 3b – 4a – 6ab10) 12b – 4a + 3ab – 7a11) 4x 2 + 3x – 2x 212) 6y 2 – 4y – 5y 213) 4y 2 – 4xy + 4xy14) – 6x 2 + 3y 2 – 4x 215) 3( x + y) + y16) 5( 2x – y) + 2y17) 3x + 4( x + y)18) 7x – 3( x + 2y)19) 4y – 2( x – y)20) 6x – 42x ( – 2y)21) 3( x + y) + 2( x – y)22) 42x ( + 3y) – ( x + 2y)23) 52x ( – 3y) – ( 2x – y)24) 32x ( – y) – 23x ( – y)25) 32x ( – 3) – 3( x – 4)26) 5( 2x – 3y) – 35x ( – 2y)27) 4x( 2x – 3) – 3x( 2x + 4)28) 7xy ( – 2) – 6y( 2x – 3)29) 4y( 2y – 3x) – 2x( x–3y)30) 4x( 4y + 3x) – 3y( 4x – 3y)1 11 131) --x + --x32) --x – --x4 32 32 1133) --y – --y34) --y 2 +1 3 23 6 --y2Exercise 2Expand and simplify1) ( x + 1) ( x – 3) 2) ( x + 2) ( x – 4)3) ( 2x + 3) ( x – 7) 4) ( 2x + 5) ( 3x – 2)5) ( 2x – 7) ( 3x + 2) 6) ( 3x + 4) ( 2x – 5)7) ( 5x + 2) ( 7x – 3) 8) ( 4x + 8) ( 3x – 2)9) ( 4x – 4) ( 2x + 1) 10) ( 3x + 2y) ( 2x + 3y)11) ( 4x + y) ( x + 3y) 12) ( x – 4) ( 2x – 6)13) ( x + 1) 14) ( 3x + 2) 15) ( 5x – 2) 16) ( 3x + 4) 17) ( 5x – 6) 18) ( 7x + 2) 19) (– 3x + 2) 20) (– 5x – 7) 21) (– 4x – 6) 22) ( x + y) 23) ( 2x + 3y) 24) ( 4x – 2y)

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