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Sagot :
The equation -10x + 34 is the simplification for the given expression.
Addition Sign Rules
Here it is important to remember the rules for the addition of integers numbers:
+ + Add Final result (+)
- - Add Final result (-)
+ - Subtract Final result (the sign of the integer having a greater value )
- + Subtract Final result (the sign of the integer having a greater value )
Multiplication Sign Rules
The rules for multiplication of numbers are:
- + + or - -
The result presents a positive sign (+) because the signs are same.
- + - or - +
The result presents a negative sign (-) because the signs are different.
First, you should apply the distributive property and the multiplication sign rules.
(x-4)(x-7) + (3-x)(2+x)
x²-7x-4x+28+6+3x-2x-x²
After that, you should simplify the previous result from addition or subtraction sign rules.
x²-11x+34+x-x²
-10x + 34
Read more about the distributive property here:
https://brainly.com/question/2807928
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