Ireally need in algebra i. the picture goes to the third problem.1) what is the product? 2x(x-4)2x^2-42x^2-82x^2-4x2x^2-8x2) what is the product? -9x(5-2x)18x^2-45x-18x^2-45x-18x-45 x18x-45x3) adi used algebra tiles to represent the product .which is true regarding adi’s use of algebra tiles? (-2x-2)(2x-1)she used the algebra tiles correctly. she did not represent the two original factors correctly on the headers. the signs on some of the products are incorrect. some of the products do not show the correct powers of x.

1) 2x^2 -8x

2) 18x^2 -45x

Step-by-step explanation:

These problems make use of the distributive property. It tells you how you can use or eliminate parentheses as you may need.

  a(b + c) = ab + ac . . . . . . . the outside factor multiplies each inside term

Of course, the usual rules of multiplication of positive and negative numbers apply. If the number of minus signs in a product is odd, the result is negative; otherwise the result is positive.

1. 2x(x -4) = (2x)(x) + (2x)(-4) = 2x^2 -8x

2. -9x(5 -2x) = (-9x)(5) + (-9x)(-2x) = -45x +18x^2 = 18x^2 -45x

3. She used the algebra tiles correctly.

a. the are of the rectangle is 18.25

b. 18.25 times two is 36.50

rae me : d