Question

add the following (i) 3x and 5x (ii) -5xy and 9xy (iii) a²+3ab and 2a²-4ab (iv) 5p³+3pq +2 and 2p³-6pq+9​

Answer 1

Answer:

(i)

$3x + 5x$

$3x5x = 8x$

(ii)

$- 5xy + 9xy$

$- 5xy + 9xy = 4xy$

(iii)

$a ^{2} + 3ab + 2a^{2} - 4ab$

$a ^{2} + 3ab + 2a^{2} - 4ab = 3a^{2} - 1ab$

(iv)

$5p^{3} + 3pq + 2 + 2p^{3} - 6pq + 9$

$5p^{3} + 3pq + 2 + 2p^{3} - 6pq + 9 = 7p^{3} - 3pq + 11$

above are the answers, questions and steps

Answer 2

Answer:

3x+5x

3x5x = 8x3x5x=8x

(ii)

- 5xy + 9xy−5xy+9xy

- 5xy + 9xy = 4xy−5xy+9xy=4xy

(iii)

a ^{2} + 3ab + 2a^{2} - 4aba

2

+3ab+2a

2

−4ab

a ^{2} + 3ab + 2a^{2} - 4ab = 3a^{2} - 1aba

2

+3ab+2a

2

−4ab=3a

2

−1ab

(iv)

5p^{3} + 3pq + 2 + 2p^{3} - 6pq + 95p

3

+3pq+2+2p

3

−6pq+9

5p^{3} + 3pq + 2 + 2p^{3} - 6pq + 9 = 7p^{3} - 3pq + 115p

3

+3pq+2+2p

3

−6pq+9=7p

3

−3pq+11

above are the answers, questions and steps