Factor x2 – 3x – 28.

Mathematics

1 answer:

wariber [46]1 year ago

3 0

Values needed to complete the X diagram are:

On top -28, On the bottom: -3 and On the sides: -7 and 4.

<h3>What do you mean by factorization?</h3>

An algebraic expression is factorised when it is written as the product of its factors.

The given equation is :

F(x) = x²-3x-28

finding factors,

= x²-7x+4x-28

= x(x-7) +4(x-7)

= (x-7)(x+4)

Given general equation is ax²+bx+c,

on comparing with x²-3x-28

a = 1

b = -3

c = -28

ac = 1*(-28) = -28

To know more about factorization please visit:

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How do you solve 800m 35cm-154m 49cm for the smaller unit?

bearhunter [10]

1 m = 100 cm
800 m = 800 x 100 = 80000 cm
Therefore, 800 m 35 cm = 80000 cm + 35 cm = 80035 cm

Also, 154 m = 154 x 100 = 15400 cm
Therefore, 154 m 49 cm = 15449 cm

Therefore, 800m 35cm - 154m 49cm = 80035 cm - 15449 cm = 64586 cm = 645m 86cm

4 0

3 years ago

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