Someone please help with number 6 and 7
Will give brainliest.
Please just edit the photos

If a =6, what is the value of 2a(3b + 5c)?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Use the expression below.–4b + 8c + 12 – 8b – 2c + 6part asimplify the expression. enter your answers in the boxes. b + c + part bfactor the simplified expression using the gcf. a. 2(–2b + c + 3) b. 3(–2b + c + 3) c. 4(–2b + c + 3) d. 6(–2b + c + 3)part cwhat is the value of the expression when b = 2 and c = –3? enter your answer in the box.