Answer:
-2u+6-9=w
-2u-3=w
u need to switch w from lhs to rhs and 9 from rhs to lhs
(-3, 5) i think, this is just a guess and I haven’t done this stuff since 8th grade mb
Answer:
54
Step-by-step explanation:
4c = 14z.
1c = 3.5z.
10c = 35z.
So she can raise 35 with 10 power crystals. Hope it helps !:)
Answer:
![P(x)=(x+7(x+4)(x-3)(x-5)=x^{4}+3x^{3}-45x^{2}-59x+420](https://tex.z-dn.net/?f=P%28x%29%3D%28x%2B7%28x%2B4%29%28x-3%29%28x-5%29%3Dx%5E%7B4%7D%2B3x%5E%7B3%7D-45x%5E%7B2%7D-59x%2B420)
Step-by-step explanation:
Given:
The zeros of the polynomial are -7, -4, 3 and 5.
The coefficient of
is 1.
A polynomial of degree 4 has maximum 4 zeros.
Let the polynomial be
.
Since,
has zeros -7, -4, 3 and 5, therefore,
![P(x)=a(x-(-7))(x-(-4))(x-3)(x-5)\\P(x)=a(x+7)(x+4)(x-3)(x-5)](https://tex.z-dn.net/?f=P%28x%29%3Da%28x-%28-7%29%29%28x-%28-4%29%29%28x-3%29%28x-5%29%5C%5CP%28x%29%3Da%28x%2B7%29%28x%2B4%29%28x-3%29%28x-5%29)
Where,
is coefficient of
.
But, coefficient of
is 1. So, ![a=1](https://tex.z-dn.net/?f=a%3D1)
∴ ![P(x)=(x+7)(x+4)(x-3)(x-5)\\P(x)=(x^{2}+11x+28)(x^{2}-8x+15)\\P(x)=x^{4}-8x^{3}+15x^{2}+11x^{3}-88x^{2}+165x+28x^{2}-224x+420\\P(x)=x^{4}+3x^{3}-45x^{2}-59x+420](https://tex.z-dn.net/?f=P%28x%29%3D%28x%2B7%29%28x%2B4%29%28x-3%29%28x-5%29%5C%5CP%28x%29%3D%28x%5E%7B2%7D%2B11x%2B28%29%28x%5E%7B2%7D-8x%2B15%29%5C%5CP%28x%29%3Dx%5E%7B4%7D-8x%5E%7B3%7D%2B15x%5E%7B2%7D%2B11x%5E%7B3%7D-88x%5E%7B2%7D%2B165x%2B28x%5E%7B2%7D-224x%2B420%5C%5CP%28x%29%3Dx%5E%7B4%7D%2B3x%5E%7B3%7D-45x%5E%7B2%7D-59x%2B420)