Algebra Multiple Choice (BCD Questions). A B C D Q1. Simplify -7x+3y+-8y+2x +5x 14x - 5y - 5y 14x + 11y 0x + 5y.

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Presentation transcript:

Algebra Multiple Choice (BCD Questions)

A B C D Q1. Simplify -7x+3y+-8y+2x +5x 14x - 5y - 5y 14x + 11y 0x + 5y

A B C D Q2. Factorise 14a (a - 2) 14(a + 2) 2(7a – 28) 14(a – 2)

A B C D Q3. Factorise x² - 3x - 70 (x – 10)(x + 7) (x – 7)(X + 10) (x – 7)(x – 10) (x + 10)(x + 7)

A B C D Q4. Factorise fully 18x² + 24x + 6 6(3x + 1)(x + 1) 6(3x – 1)(x – 1) 6(3x² + 4x + 1) 2(9x² + 12x +3)

A B C D Q5. Factorise 81h² - 9 (9h – 3)(9h - 3) 9(9h² - 1) (9h – 3)(9h + 3) 2(9x² + 12x + 3)

A B C D Q6. Expand and simplify (X + 2)(x – 6) x² - 8x - 12 x² - 4x -12 x² + 8x + 12 x² - 8X - 4

A B C D Q7. Factorise x² + x + 8 (x + 2)(x + 4) (x - 2)(x – 4) Impossible to factorise. (x – 7)(x - 1)

A B C D Q8. Simplify 5x² + 9x – 2 2x² - 8 5x – 1 2(x – 2) 3 + 9x - 6 9x x – 1 2x - 4

A B C D 4x + 50 x² + 15x +150 x² (x + 15)(x + 10) Q9. Farmer Forgetful can’t remember the dimensions of his field. He has found a scrap of paper with a sketch on it. Write an expression for the area of the field. X + 15 X +10 Field

A B C D 2a² + 48a = 0 a² + 24a – 880 = 0 a² + 48a – 1760 = 0 a² + 24a = 0 Q10. The box shown, has a square base of length a cm and is 12cm tall. The total surface area is 1760cm². Form an equation to find the total surface area of the box. 12 cm a

Answers 1.B 2.D 3.A 4.A 5.C 6.B 7.C 8.A 9.D 10.B