Q91Multiple choice
Factorise the following.
- (i)x2 + 15x + 26
- (ii)x2 + 9x + 20
- (iii)y2 + 18x + 65
- (iv)p2 + 14p + 13 (v) y2 + 4y – 21 (vi) y2 – 2y – 15 (vii) 18 + 11x + x2 (viii) x2 – 10x + 21 (ix) x2 = 17x + 60 (x) x2 + 4x – 77 (xi) y2 + 7y + 12 (xii) p2 – 13p – 30 (xiii) a2 – 16p – 80
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(i) x2 + 15x + 26
(ii) x2 + 9x + 20
(iii) y2 + 18x + 65
(iv) p2 + 14p + 13 (v) y2 + 4y – 21 (vi) y2 – 2y – 15 (vii) 18 + 11x + x2 (viii) x2 – 10x + 21 (ix) x2 = 17x + 60 (x) x2 + 4x – 77 (xi) y2 + 7y + 12 (xii) p2 – 13p – 30 (xiii) a2 – 16p – 80