Question

ans this
find the product with out actual multiplication​

Answer 1

Answer:

Use the formula

$(x + y) \: (x - y) = {x}^{2} - {y}^{2}$

So

$(3x + 4y) \: (3x - 4y) = {(3x)}^{2} - {(4y)}^{2} \\ \\ = 9 {x}^{2} - 16 {y}^{2}$

Hope it helps. Good night.

Answer 2

Step-by-step explanation:

$9x {}^{2} - {16y}^{2}$

${9x}^{2} - 12xy + 12xy - {16y}^{2}$

-12xy+12xy will be cancelled

so that we get

${9x}^{2} - {16y}^{2}$

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