18 (2x2 + 5x) (2x2 + 5x - 19) + 84
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Answered by
3
Answer:
18(4+5x)(4+5x-19)+84
72(-15+5x)+90x(-15+5x)+84
-1080+360x-1350+450x+84
-2346+810x=0
x=2.89
Step-by-step explanation:
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Answered by
0
Question:-
=> 18 (2x² + 5x) (2x² + 5x - 19) + 84
Solution:-
=> 18 (2x² + 5x) (2x² + 5x - 19) + 84
=> 18 ( 4x^4 + 10x³ - 38x² + 10x³ + 25x² - 95x ) + 84
=> 18 ( 4x^4 + 10x³ + 10x³ - 38x² + 25x² - 95x ) + 84
=> 18 ( 4x^4 + 20x³ - 13x² - 95x ) + 84
=> 74x^4 + 360x³ - 234x - 1710x + 84
i hope it helps you.
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