Question

pls help me with this question ​

Answer 1

2x+3=?

Step-by-step explanation:

2x=-3

X=-3/2

your answer is ready

2x=3

X=3/2

ye second answer he

first and second Nahi aata

Answer 2

Answer:

The value of $\frac{d(x-1)(x-2)}{dx}$ = 2x-3

Step-by-step explanation:

We use two rule of derivation,

(i) f(x) = $x^{n}$

differentiate this equation with respect to x

f'(x) = $nx^{n-1}$

(ii) Rule of multiplication

f(x) =  $x_{1} x_{2}$

differentiate this equation with respect to x

f'(x) = $\frac{dx_{1} }{dx}x_{2} + \frac{dx_{2} }{dx} x_{1}$

Now in question,

f(x) = (x-1)(x-2)

differentiate this equation with respect to x

f'(x) = $\frac{d(x-1)(x-2)}{dx}$

f'(x) = $\frac{d(x-1)}{dx} (x-2) + \frac{d(x-2)}{dx} (x-1)$

f'(x) = x-2 + x-1

f'(x) = 2x-3

Hence option c is correct