Answer this 50 points and brainliest!

4x^2 -3x -2

Step-by-step explanation:

x^2 -x +1 + 3x^2 -2x-3

I like to line up the terms vertically

   x^2 -x +1

+ 3x^2 -2x-3

4x^2 -3x -2

Remember the large squares are x^2 and the rectangle are x and the small squares are 1's

Colored tiles are positive and white tiles are negative

x^2 -x +1

1 large colored square , 1 white rectangle and 1 small colored square

3x^2 -2x-3

3  large colored squares , 2 white rectangle and 3 small white squares

4x^2 -3x -2

4  large colored squares , 3 white rectangle and 2 small white squares

Step-by-step explanation:

Remove brackets.

Combine like terms.

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b