3 years ago

Multiply the following Polynomial Expressions. ( 3x2 - 4x + 5) (x2 + 2x + 3)

1 answer:

7 0

Answer:

3x^4+2x^3+6x^2+-2x+15

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faltersainse [42]

The square of a binomial is written like

$(x\pm a)^2 = x^2\pm 2ax + a^2$

In your case, you have $2ax=-8x$ , which implies $a=-4$

So, we want to write

$(x-4)^2 = x^2-8x+16$

But our left hand side is

$x^2-8x-10$

If we add 26 to both sides, we have

$x^2 - 8x - 10 +26 = 18+26 \iff x^2-8x+16=44 \iff (x-4)^2=44$

7 0

4 years ago

USPshnik [31]

Answer:

Step-by-step explanation:

You would replace the x with -2x so you would end up with -2×-2 and that is 4 then minus 2 is 2.

7 0

3 years ago

Iteru [2.4K]

B is the answer i'm positive

7 0

3 years ago

barxatty [35]

Answer:

whats the question?

Step-by-step explanation:

8 0

4 years ago

BlackZzzverrR [31]

$p\%=\frac{p}{100}\\\\7.4\%=\frac{7.4}{100}=\frac{7.4\cdot10}{100\cdot10}=\frac{74}{1000}=\boxed{0.074}$

5 0

4 years ago