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9 votes
9 votes
Find the Product and Combine similar terms.

1. -1(7+4b) =
2. x(x²–2xy+y²) =
3. -5x(-3+x) =​

User TrystanHumann
by
2.4k points

1 Answer

18 votes
18 votes
-1(7+4b) - distribute the -1 to the expression
(-1 * 7) + (-1 * 4b) — ( + and - = - )when it is multiplied
= -7 - 4b — there is no like term to added to subtracted so it will stay as like

x(x^2 - 2xy+y^2) distribute x to all
= x(x^2) - x(2xy) + x(y^2)
= x^3 - 2x^2y + xy^2 in multiplication exponent add to similar variable
No like term to connect

-5x(-3+x)
= -5x(-3) -5x(+x). (- and - is +)
= 15x -5x. similar variable x so connect the like connect like term by subtracting them
= 10x


User FPK
by
2.9k points
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