LaurenKimberly LaurenKimberly

10-09-2014
Mathematics

Answered

Simplify 5x-3y+2x-4y
Expand 5(2x+4)
Expand and simplify 4(3-2x)-4+5x
Expand and simplify (x+4)(x-7)
Expand and simplify (3x-3)(2x-5)

Answer :

rungirlrun rungirlrun

10-09-2014

5(2x+4)
Multiply 5 by 2x and 4
=10x+20

4(3-2x)-4+5x
12-8x-4+5x
8-3x

(x+4)(x-7)
x^2-7x+4x-28
x^2-3x-28

(3x-3)(2x-5)
6x^2-15x-6x+15
6x^2-21x+15

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