Results from 5x² - 4x -5 - 2 (x² + 3x - 4) ...
A. 3x² + 10x + 3
B. 3x² - 10x + 3
C. 3x² - 10x-3
D. 3x² - 10x + 3
Answers
Answered by
0
5x² -4x -5 -2 ( x² +3x -4)
=5x² -4x -5 -2x² -2(3x) -2(-4)
= 5x² -4x -5 -2x² -6x + 8
= (5 -2)x² -(4 + 6)x +( -5 +8)
= 3x² -10x +3
so, option B is correct .
=5x² -4x -5 -2x² -2(3x) -2(-4)
= 5x² -4x -5 -2x² -6x + 8
= (5 -2)x² -(4 + 6)x +( -5 +8)
= 3x² -10x +3
so, option B is correct .
Answered by
2
5x^2-4x-5-2 (x^2+3x-4)
=5x^2-4x-5-2x^2-6x+8
=5x^2-2x^2-4x-6x+8-5
=3x^2-10x+3 ans
=5x^2-4x-5-2x^2-6x+8
=5x^2-2x^2-4x-6x+8-5
=3x^2-10x+3 ans
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