Someone please help me with this !!

1. 5x - 2

2. 5x + 2

3. -5x - 2

4. -5x + 2

Step-by-step explanation:

Combine like terms

Have a nice day!

12x+8-7x-10= 5x-2

17/3x+17-2/3x-15= 5x+2

8-12x-10+7x= -5x-2

9-9/2x-1/2x-7= -5x+2

-10i^2-4i

step-by-step explanation:

evaluate for p=2,q=5i

(2−4)(2+5i)i

(2−4)(2+5i)i

=−10i2−4i

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