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3 years ago

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

Mathematics

1 answer:

Sedaia [141]3 years ago

3 0

Answer:

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

Step-by-step explanation:

x^2+2x-63.

the middle number is <em>2 </em>and the last number is <em>-63</em>.

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

Those numbers are -7 and 9.

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

((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.

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)

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