Answer:
x=-7
Step-by-step explanation:
5(-2x-3)-4x-5=78
-10x-15-4x-5=78
-14x-20=78
<u> +20 +20</u>
<u>-14x</u>=<u>98</u>
-14 -14
x=-7
Answer:
1. Not rhombus
2. Rhombus
3. Rhombus
Step-by-step explanation:
The little lines you see represent the size. So if you see one line on all sides, its a rhombus. If you see 1 line on one side, 2 lines on two sides, and 3 on the last side, it is not a rhombus.
Look for the lines.
Up to multiples, if you're given the roots you can write the polynomial by multiplying several parenthesis in the form
where is a root. So, in your case, you have
We can fix the parameter a by imposing f(0)=60:
So, your polynomial is
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