Question

If a = -2, b = 3, evaluate the following:
(i) 25a 3
(ii) 27a²b-3

Answer 1

Answer:

(i) 25×(-2)+3

= -50+3

= -47 ans

(ii) 27×-2×-2+3-3

= 27×4

= 108 ans

( because, -×-= +)

Answer 2

Answer:

The answer is

(i) -150

(ii) 321

Step-by-step explanation:

(I) 25(-2)3

=-150

(ii)

$27a {}^{2} b - 3$

$= 27( - 2) {}^{2} (3) - 3$

$= 27(4)(3) - 3$

=324-3

=321

( Sorry if wrong)