Question

9. If a=3, b= - 4 and c= -2, find the value of 2a + 3b - 3? Class 6
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Answer 1

Answer:

put values

Step-by-step explanation:

2(3) +3(-4) -3

(Don't forget to use bodmas rule)

( bracket open divide multiply addition subtraction)

6+(-12) + (-3)

6-15

-9

Answer 2

❄(2a - 3b) = 4❄

☃️Cubing☃️

❄(2a - 3b)³ = 4³❄

❄8a³ - 27b³ - 3ab ( 2a - 3b) = 64❄

❄8a³ - 27b³ - 3 × 3 × 4 = 64❄

❄8a³ - 27b³ = 64 + 36 = 100❄