Factor the following trinomials .

x2 + 2x - 35

x2 - x - 12

Add up the first 2 terms, pulling out like factors :
                    x • (x-5)

Add up the last 2 terms, pulling out common factors :
                    7 • (x-5)
Add up the four terms of step 4 :
 (x+7)  •  (x-5)

Next

x^2 - 4x + 3x - 12

Add up the first 2 terms, pulling out like factors :
                    x • (x-4)

Add up the last 2 terms, pulling out common factors :
                    3 • (x-4)
Add up the four terms
                    (x+3)  •  (x-4)

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step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v