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3 years ago

Factor of 9x2 18x + 8? Factor of 9x^2-18x+8

Mathematics

2 answers:

zmey [24]3 years ago

6 0

Answer:

(3x - 2)(3x - 4).

Step-by-step explanation:

9x^2-18x+8

Use the 'ac' method:

9 * 8 = 72.

We need 2 numbers whose product is + 72 and whose sum is -18

These are -12 and -6 so we rewrite the expression as:

9x^2 - 12x - 6x + 8 Now we factor by grouping:

= 3x(3x - 4) - 2(3x - 4) The 3x - 4 is common so we have:

(3x - 2)(3x - 4).

statuscvo [17]3 years ago

4 0

Answer:

(3x + 2)

(3x + 4)

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