Question

12. Multiply (5x -8y) by (9x +4y)
(1 Point)

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Answer 1

Step-by-step explanation:

9x(5x-8y)+4y(5x-8y)

= 45x^2-72xy+20xy-24y^2

=45x^2-52xy-24y^2

Answer 2

Answer

45x-32y

Step-by-step explanation:

+ and - equal to -

so it will be -

then multiply the like terms

so it will be 5× X 9 × and 4 y X 8 y

which will be equal to 45 X and 32 y

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