The expression is simplified to 10x² + 48x + 3 =0
<h3>How to determine the value</h3>
Given the expression as;
We take the numerators have the same base, then we have;
(4x+1)(x+2) + 4(x(x+ 15) = -2x² + 21x - 1
expand the bracket
4x² + 8x + x + 2 + 4(x² + 15x) = -2x² + 21x - 1
4x² + 8x + x + 2 + 4x² + 60x = -2x² + 21x - 1
collect like terms
4x² + 4x² + 2x² + 8x + x + 60x - 21x = - 1 - 2
Add or subtract like terms
10x² + 48x = -3
Make into a quadratic equation
10x² + 48x + 3 =0
Thus, the expression is simplified to 10x² + 48x + 3 =0
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<h3 />
So you need to find the distance from the warehouse to the airport to the factory. The factory is 88 miles north of the warehouse.
You should notice that each block is 11 miles. 88 miles happens to be a multiple of 11. 88/11 = 8, so the factory is 8 blocks above the warehouse.
(See attachment)
Now use Pythagorean theorem. If one leg of the triangle is 88 and the other leg is 66, then to find the hypotenuse:
88² + 66² = x²
x = 110
So now you that you have the sides of the triangle, you can easily determine the answer.
No it’s not -7 it’s = 2x + 20
i hope it helps!
Answer: B
Step-by-step explanation: