find question number 3 with step by step explanation, best answer will be marked as brainlest. Thank you
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find question number 3 with step by step explanation, best answer will be marked as brainlest. Thank you
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Step-by-step explanation:
third one or fourth becuase I know both
Answer:
21x^4 + 5xy^3
Step-by-step explanation:
area of rectangle= L×B
L= 3x^2-5y^2 , B= 7x^2-xy
(3x^2-5y^2) (7x^2-xy)
21x^4+5xy^3
Hope this is helpful