Determine whether the following is a difference of squares.
-$$49 x ^ { 2 } - 19 y ^ { 2 }$$

Name: Determine whether the following is a difference of squares. -\[49 x ^ { 2 } - 19 y ^ { 2 }\]
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Question

Quizplus · Accepted Answer

A difference of squares has the form $a^2-b^2=(a+b)(a-b)$. However, in $49x^2-19y^2$, $49x^2$ cannot be factored into a product with a term that is a square and neither can $19y^2$. Therefore, it is not a difference of squares.

Determine Whether the Following Is a Difference of Squares 49x2−19y249 x ^ { 2 } - 19 y ^ { 2 }49x2−19y2

Determine Whether the Following Is a Difference of Squares $49 x ^ { 2 } - 19 y ^ { 2 }$