1. Copy and complete the following
b) x2 – x –
12;
c) x2 – 4x –
12;
d) x2 – 8x –
12.
2. Copy and complete the following
b) a2
– 2a – 15;
c) a2
– 2a – 5;
d) 2a2
– 2a – 10.
3. Copy and complete the following
(m –
7)2 =
b) m2 – 2m + 2;
c) m2 – 49m + 49;
d) m2 – 2m + 49.
4. Expand
(x – 6)2
а) x2 – 12x + 36;
b) x2
– 12x + 32;
c) x2
– 12x – 36;
d) 2x2
– 12x + 36.
5. Expand
(m – 1)2
а) m2 + 2m – 1;
b) m2
+ 2m + 1;
c) m2
– 2m + 1;
d) m2
– 2m – 1.
6. Expand
(y – 10)2
а) 2y2
– 20y + 100;
b) y2
– 20y – 100;
c) y2
– 100y + 20;
d) y2
– 20y + 100.
7. Expand
(a – 8)2
а) a2
– 6x + 64;
b) a2
– 16x + 64;
c) 2a2
– 16x + 64;
d) a2
– 16x – 64.
8. Expand
(2 + n)(n
+ 3)
а) n2
+ 5n + 6;
b) n2
+ 6n
+ 5;
c) 2n2
+ 5n + 6;
d) n2
+ 5n + 5.
9. Expand
(x + 5)(6 + x)
а) x2
+ 11x + 35;
b) x2
+ 11x + 30;
c) 2x2
+ 11x + 30;
d) x2
+ 9x
+ 30.
10. Expand
(y + 4)(3 – y)
а) 12 – y
+ y2;
b) 12 + y
+ y2;
c) 12 – y
– y2;
d) 12 + y
– y2.
11. Expand
(x + 1)2 + (x + 3)2
а) 2x2
+ 10x + 10;
b) 2x2
+ 8x + 10;
c) 4x2
+ 8x + 10;
d) x2
+ 8x + 10.
12. Expand
(n + 4)2 + (n – 2)2
а) 2n2
+ n + 20;
b) 2n2
+ 4n + 24;
c) n2
+ 6n
+ 20;
d) 2n2
+ 4n + 20.
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