Question

B² - 5c if b = 15 and c = 9

Answer 1

Answer:

180

Step-by-step explanation:

Here,

b=15

c=9

Now,

$=b^{2}-5c\\\\=15^{2} -5*9\\\\=225-45\\\\=180$

Answer 2

Answer:

180

Step-by-step explanation:

b^2-5c

Substitute 15 in for b

15^2=225 -> 225-5c

Substitute 9 in for c

5(9)=45

225-45 = 180