Answer:
we have to subtract 5×⁴-4׳+3ײ-2×from 8×⁴-7׳+2
Johnny just got out of high school he has $90 then he gets a job, his job pays him 20 dollars a month, how much money does he ha
2 answers:
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Answer:
(a) Expanded form:
(b) The value of the expression: -21
Step-by-step explanation:
Given
Solving (a): The expanded form:
This means that we substitute the values of i from 1 to 4 in the above expression.
So, the expression becomes:
Solving (b): The value of the expression
To do this, we simply substitute the given values of X1, X2....... in the expression.
This gives:
So, the expression becomes:
Simplify each bracket
<em>Hence, the result of the expression is -21</em>