What is the product of (x−4) and (x2−7x+10)? x2−6x+6
x2−8x+14
x3−11x2+38x−40
x3−3x2−18x−40

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

22 dimes and 9 nickels

step-by-step explanation: