Question

Add by vertical method of addition:
(a) k, 3k, -2k, +7k, -5k (b) 6a + 4b and 2a + 3b (c) 2a + 3b + 1 and 4a + 2b + 7 (d) x2-3x +4, 4x2-2x + 7 and –x2 + 5x – 2

Answer 1

Answer:

(a) 4k

(b) 8a + 7b

(c) 6a + 5b + 8

(d) 4x2 + 9

Step-by-step explanation:

(a) k

+3k

- 2k

+7k

- 5k

4k

(b) 6a + 4b

+2a + 4b

8a + 7b

(c) 2a + 3b + 1

+4a + 2b + 7

6a + 5b +8

(d) x2 -3x +4

+4x2 -2x +7

- x2 +5x -2

4x2 +9