Question

$- 7b^{2} + 3b^{5} \div 3b^{3}$
​

Answer 1

Answer:

ANSWER

2A+3B=[

2

3

−1

2

4

5

] …………(1)

A+2B=[

5

1

0

6

3

2

] ………….(2)

2× Equation (2) - Equation (1)

⇒2A+4B−2A−3B=[

10−2

2−3

0+1

12−2

6−4

4−5

]

⇒B=[

8

−1

1

10

2

−1

].