What is (a+b)(a-b) equal

Mathematics

2 answers:

Alja [10]2 years ago

5 0

Answer:a squared-b squared

Step-by-step explanation:

ryzh [129]2 years ago

5 0

Answer:

$(a+b)(a-b)=a^{2} -b^{2}$

Step-by-step explanation:

This is a example of <em>remarkable identities</em>.

We know that the result of multiplication is called product and the values that multiply are called factors.

We call <em>remarkable identities </em>to certain algebraic expressions with binomial products very frequent in the calculation.

For this example, we got a <em>Product of the sum for the difference of two binomials</em>.

$(a+b)(a-b)$

The product of the sum for the difference of two binomials is equal to the square of the first quantity, minus the square of the second.

$(a+b)(a-b)=a^{2} -b^{2}$

Demostration:

$(a+b)(a-b)= a^{2} -ab+ab-b^{2}=a^{2} -b^{2}$

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