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Factor completely.

7x^(2)+35 x+42=

Factor completely.\newline7x2+35x+42=7x^{2}+35x+42=

Full solution

Q. Factor completely.\newline7x2+35x+42=7x^{2}+35x+42=
  1. Identify Form: Identify the form of the quadratic trinomial.\newlineThe given expression 7x2+35x+427x^2 + 35x + 42 is a quadratic trinomial in the form ax2+bx+cax^2 + bx + c.
  2. Find Common Factors: Look for common factors in all three terms.\newlineThe coefficients 77, 3535, and 4242 all have a common factor of 77.
  3. Factor Out GCF: Factor out the greatest common factor (GCF) from the expression.\newlineThe GCF of 7x27x^2, 35x35x, and 4242 is 77. Factoring out 77 gives us 7(x2+5x+6)7(x^2 + 5x + 6).
  4. Factor Quadratic Expression: Factor the quadratic expression inside the parentheses.\newlineThe quadratic x2+5x+6x^2 + 5x + 6 can be factored into (x+2)(x+3)(x + 2)(x + 3), since 22 and 33 are the numbers that multiply to 66 and add up to 55.
  5. Write Final Factored Form: Write the final factored form of the original expression.\newlineCombining the GCF with the factored quadratic, we get 7(x+2)(x+3)7(x + 2)(x + 3).