Question

plz answer this fast...I need it​

Answer 1

Answer is 20

You can go with it I am sure

Answer 2

Option 4 is correct :

40 is the answer .

Formula used :

$\star \boxed{ \red{ \bold{\int \: {x}^{n} dx = \frac{ {x}^{n + 1} }{n + 1} + c }}}$

• Here , we used property Number 5 :

$\star \boxed{\bold{ \int \limits_ {a}^{b} f(x) \: dx = \int \limits_ {a}^{c} f(x)dx + \int \limits_ {c}^{b} f(x)dx}}$

Solution refer to the attachment: