Right triangle area

Help ASAP please

150 cm^2

1.Use Pythagorean’s Theorem

25^2= 15^2 - x^2
X=20

2. Use triangle area formula

1/2 • bh= 0.5 • 20 • 15= 150 cm^2

To solve this integral, what you can do is split it up as follows: (1) ∫40(x2−4)dx=∫40(x2)dx−∫40(4)dx. to integrate  4  as an  indefinite integral, a good rule of thumb is  by  an equation below  for  polynomials; . (2) ∫xa=xa+1a+1+c , where a is any number. c denotes some constant that is crucial when doing