Question

what should be the value of the following given expression if a = - 1 , b = -2 (i) 10-3b-4-5b (ii) a²-2b-100​

Answer 1

Answer:

(i) 22

(ii) -95

Step-by-step explanation:

(i) 10 - 3b - 4 - 5b = 10 - (3*(-2)) -4 -5*-2

                            = 10 -(-6) -4 +10

                            = 10 + 6 -4 +10

                            = 22

(ii) a²-2b-100       ​ = (-1)² - 2*(-2) - 100

                            = 1 + 4 -100

                            = -95