X²- 4x +3=0
what is x using the quadratic formula?

x1) (4+2)/2 = 6/2 = 3

                x2) (4-2)/2 = 2/2 = 1

Step-by-step explanation:

x²-4x+3=0

a)1

b)-4

c)3

-(-4)+-√-4²-4*1*3

2*1

4+-√16-12

2

4+-√4

2

4+-2

2

x1) (4+2)/2 = 6/2 = 3

x2) (4-2)/2 = 2/2 = 1

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐