Question

ALGEBRAIC EXPRESSIONS
(i) x2 + 11x - 60
(iv) x2 + 2x - 48
(uit) rº - 4x
21
(x) + 5x - 36
(xiii) xº + 22x - 48
(ii) x-x-42
(v) x? 15x + 56
(viii) x2 19x + 34
(xi) x² + 16x - 36
(iii) x2 - 2x - 24
(vi) x2 + 7x - 60
(ix) x2 8x -9
(xii) x2 - 19x + 84
4. Factorise the following expressions :​

Answer 1

Step-by-step explanation:

it's all done by splitting the middle term method

e.g., I)x2+11x-60

x2+15x-4x-60

x(x+15)-4(x+15)

(x-4)(x+15)

x=4,. x=-15

Answer 2

Answer:

(i)(x+15)(x-4)

step by step explanation:

taking factors of 60 we get:

2,2,3,5

multiplying 2×2 and 3×5 we get to split the terms into:

x² + 15x - 4x - 60

By taking common we get

x(x + 15) - 4(x+15)

taking common again we get

(x + 15)(x - 4)