x square - 11 x - 42 = 0 complete squaring method
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Answered by
0
Answer:
As we have seen, quadratic equations in this form can easily be solved by extracting roots. We begin by examining perfect square trinomials:
The last term, 9, is the square of one-half of the coefficient of x. In general, this is true for any perfect square trinomial of the form
x
2
+
b
x
+
c
.
In other words, any trinomial of the form
x
2
+
b
x
+
c
will be a perfect square trinomial if
Answered by
1
Answer:
x²-14x+3x-42=0
x(x-14)+3(x-14)=0
(x+3)(x-14)=0
hope this helps u
Step-by-step explanation:
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