Question

Value of
-
p(q − 3)
4
when p = 2 and q = -7

Answer 1

EXPRESSIONS

Plug numbers into the expression :

p = 2

q = - 7

`\sf{p(q-3)}\\2(-7-3)\\2(-10)\\-20`

-20 (ans.)

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Answer 2

80

Explanation:

-p(q-3)4

We need to plug in our values and replace the variables. This makes the equation look like:

-2 (-7 - 3) x 4

1. -2 (-10) x 4: We focus on order of operations and complete the equation in the parentheses first.

2. 20 x 4: Then we multiply from right to left since there is no particular order in which we must do the same operation.

3. 80