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Popular >

factor 3a^2-42a+147

Solution

factor

3 a^{2} - 42 a + 147

Solution

3 (a - 7)^{2}

Solution steps

3 a^{2} - 42 a + 147

Factor out common term

3 : 3 (a^{2} - 14 a + 49)

= 3 (a^{2} - 14 a + 49)

Factor

a^{2} - 14 a + 49 : (a - 7) (a - 7)

= 3 (a - 7) (a - 7)

Apply exponent rule:

aa = a^{2}

(a - 7) (a - 7) = (a - 7)^{2}

= 3 (a - 7)^{2}

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Frequently Asked Questions (FAQ)

What is factor 3a^2-42a+147 ?
The solution to factor 3a^2-42a+147 is 3(a-7)^2