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Solve the equation (3x–1)(5x+4)–15^2=17
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Solve the equation (3x–1)(5x+4)–15^2=17

User Jemal
by
7.2k points

1 Answer

6 votes

Answer:


x=3

Step-by-step explanation:

we have


(3x-1)(5x+4)-15x^2=17

applying the distributive property left side


(3x-1)(5x+4)-15x^2=17\\15x^(2)+12x-5x-4-15x^(2)=17

Combine like terms


(15x^(2)-15x^(2))+(12x-5x)=17+4


(0)+(7x)=21


7x=21


x=21/7=3

User Psyill
by
6.7k points
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