PSAT Math : How to multiply binomials with the distributive property

Study concepts, example questions & explanations for PSAT Math

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Example Questions

Example Question #1 : Binomials

Decrease  by 40%. Which of the following will this be equal to?

Possible Answers:

Correct answer:

Explanation:

A number decreased by 40% is equivalent to 100% of the number minus 40% of the number. This is taking 60% of the number, or, equivalently, multiplying it by 0.6. 

Therefore,  decreased by 40% is 0.6 times this, or

Example Question #2 : How To Multiply Binomials With The Distributive Property

Find the product:

Possible Answers:

Correct answer:

Explanation:

Find the product:

Use the distributive property:

Write the resulting expression in standard form:

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