Question

How do you simplify 20m−3n74mn−3p−4?

Answer 1

Answer :

$20m - 222mn {}^{2} - 3p - 4$

Step by step explanation :

$20m - 3n \times 74mn - 3p - 4$

Multiply the numbers. Multiplying a positive and a negative equals a negative : (+) × (-) = (-).

$= > 20m - (3 \times 74)nmn - 3p - 4$

Multiply the numbers

$= > 20m - 222nmn - 3p - 4$

If a term doesn't have an exponent it is considered that the exponent is 1

$= > 20m - 222n {}^{1} mn {}^{1} - 3p - 4$

Multiply the terms with the same base by adding their exponents.

$= > 20m - 222n {}^{1 + 1} m - 3p - 4$

Add the numbers

$= > 20m - 222n {}^{2} m - 3p - 4$

Use the commutative property to reorder the terms

$= > 20m - 222mn {}^{2} - 3p - 4$