3 years ago

1. Which binomial is a factor of f(x) = x^4 + 7x^3 - 7x^2 - 43x + 42?

1 answer:

3 0

F(x) = x^4 + 7x^3 - 7x^2 - 43x + 42
f(1) = 1^4 + 7(1)^3 - 7(1)^2 - 43(1) + 42 = 1 + 7 - 7 - 43 + 42 = 0
Since f(1) = 0, therefore (x - 1) is factor.

You might be interested in

Find the pair of numbers whose sum is 68 and whose product is a maximum.

Aleksandr-060686 [28]

34 and 34 I’m pretty sure

6 0

2 years ago

The news stations said that their polls showed that 9% of voters would vote in favor of passing the law 600 of the 6,342 voters

stealth61 [152]

No. 9% of 6,342 is 570.78. Rounded, it's close to 600, but not exact.

3 0

3 years ago

Someone help me please

kicyunya [14]

Would it be a ratio, if it is it would most practically be 10:40 and if in simplest form it would be 1:4 or just you photo math

5 0

3 years ago

What is 2 radical 15 squared

aleksandrvk [35]

$2\sqrt{15^2}=2\cdot15=30\\\\\\2\sqrt{15^2}=2\cdot\left(15^2\right)^\frac{1}{2}=2\cdot15^{2\cdot\frac{1}{2}}=2\cdot15=30$

$\left(2\sqrt{15}\right)^2=2^2\cdot\left(\sqrt{15}\right)^2=4\cdot15=60\\\\\left(2\sqrt{15}\right)^2=2^2\cdot\left(\sqrt{15}\right)^2=4\cdot\left(15^\frac{1}{2}\right)^2=4\cdot15^{\frac{1}{2}\cdot2}=4\cdot15^1=4\cdot15=60$

8 0

3 years ago

How do I solve this?

7nadin3 [17]

The minimum happens at x = -b/2a

x = -30 / 2(3) = -30/6 = -5

Now replace x in the equation with -5 and solve:

3(-5)^2 + 30(-5) +27 = 75 - 150 + 27 = -48

The minimum is at (-5,-48)

3 0

3 years ago

Read 2 more answers