How do you simplify $2 + 3 \cdot 5^{2} - 7$ $2 + 3 * 5^2 - 7$ ?

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How do you simplify $2 + 3 \cdot 5^{2} - 7$ $2 + 3 * 5^2 - 7$ ?

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Answer 1 · 2018-05-03T06:54:06

Answer is $7.25$ $7.25$

Explanation:

We use PEMDAS:
Exponential first, then addition and the subtraction in this given question.
$2 + {3.5}^{2} - 7$ $2+3.5^2-7$
$2 + 12.25 - 7$ $2+ color(red)12.25-7$ ----> exponential
$14.25 - 7$ $color(red)14.25-7$ -----> addition
$7.25$ $color(red)7.25$ ------> subtraction
Answer is $7.25$ $7.25$

Answer 2 · 2018-05-03T11:46:27

$70$ $70$

Explanation:

The given expression has $3$ $3$ terms.

Simplify each term to a single answer and then add or subtract them in the last step.

$2 + 3 \times 5^{2} - 7$ $" "2+3xxcolor(red)(5^2) -7$

$= 2 + 3 \times 25 - 7$ $=2+color(blue)(3 xx 25) -7$

$= 2 + 75 - 7$ $=2+75-7$

$= 70$ $=70$

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How do you simplify $2 + 3 \cdot 5^{2} - 7$ $2 + 3 * 5^2 - 7$ ?

2 Answers

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