Respuesta :
Since [tex]a = 10[/tex] and [tex]b = 2x + 5[/tex], we have
[tex]ab=10(2x+5)=20x+50[/tex]
So, the equation becomes
[tex]ab = 6x^2 +11x-10 \iff 20x+50= 6x^2 +11x-10 \iff 6x^2-9x-60=0[/tex]
The solutions to this equation are 4 and -5/2, so I'm afraid there's a typo in your question.
Answer:
4
Step-by-step explanation:
used the calculator and plugged it in while taking the test. this is correct
