Question

PLEASEEEE HELP ASAP i’ll mark brainliest !!! SHOW YOUR WORK

Answer 1

Answer:

a- (x-7)(x+9) | b- 193*207 | c- 242*258

Step-by-step explanation:

a)

x^2+2x-63.

the middle number is 2 and the last number is -63.

You would have 2 numbers that add to 2 and multiply to -63.

Those numbers are -7 and 9.

so (x-7)(x+9).

b)

((200)-7)((200)+9)

(193)(209).

You can check this by multiplying 193 by 209 and then doing (200)^2+2(200)-63. Both would equal 40337.

c)

2(x-7)+2(x+9)=1000

(2x-14)+(2x+18)=1000

4x+4=1000

4x=996

x=249.

((249)-7)((249)+9)

(242)(258)