The value of the expression 8 - I2g - 5I is -4 β D
Step-by-step explanation:
The absolute value always gives a positive value IaI = a and I-aI = a
Let us solve the question
β΅ The expression is 8 - I2g - 5I
β΅ The value of g is g = -3.5
β To find the value of the expression substitute g by -3.5
β΅ 8 - I2g - 5I = 8 - I2(-3.5) - 5I
β΄ 8 - I2g - 5I = 8 - I-7 - 5I
β΄ 8 - I2g - 5I = 8 - I-12I
β By using the rule above
β΅ I-12I = 12
β΄ 8 - I2g - 5I = 8 - 12
β΄ 8 - I2g - 5I = -4
β΄ The value of the expression 8 - I2g - 5I is -4