How do I solve numbers 3 and 4? What’s the answer?

Mathematics

1 answer:

Pepsi [2]2 years ago

8 0

3. BD + DC = BC because when you put line BD and line DC together, you get line BC.

4. When you put angle 1 (BA) and angle 2 (AC) together, you get angle BAC

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Expand and simplify 4(x-2)+7(x-1)

Zolol [24]

Answer:

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Step-by-step explanation:

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2 years ago

Solve 12^x^2+5x-4 = 12^2x+6

faust18 [17]

The solutions for ‘x’ are 2 and -5

<u>Step-by-step explanation:</u>

Given equation:

$12^{x^{2}+5 x-4}=12^{2 x+6}$

Since the base on both sides as ‘12’ are the same, we can write it as

$x^{2}+5 x-4=2 x+6$

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$x^{2}+3 x-10=0$

Often, the value of x is easiest to solve by $a x^{2}+b x+c=0$ by factoring a square factor, setting each factor to zero, and then isolating each factor. Whereas sometimes the equation is too awkward or doesn't matter at all, or you just don't feel like factoring.