What must be multiplied to 3x + 7y to get 9x² - 49y²?

help.​

(3x - 7y)

Step-by-step explanation:

we know that

..(a + b) (a - b) = (a^2 - b^2)

=> (a + b) = (3x + 7y)

=>. (a^2 - b^2) = (9x^2 - 49y^2)

=> so, (a - b).= (3x - 7y)

hope it helps

a

step-by-step explanation:

u take $30 minus $24. the answer/original($30)

a. true

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