Algebra 7 Point 4

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Algebra 7 Point 4

  1. 1. 7.4 Factoring Trinomials: ax2<br />Objective: <br /><ul><li>To factor trinomials of the form ax2 + bx + c</li></ul>Frameworks: 10.P.5<br />
  2. 2. What effect does multiplying the first term by a constant have?<br />Factor: 3x2 - 14x + 8<br />Look at negatives & positives . . .<br />Factors of 8 must both be _________?<br />(3x - )(x - )<br />Try 4 and 2<br />Try 2 and 4<br />
  3. 3. Factor 4x2 - x – 5 <br />(2x - 5)(2x + 1) ???<br /> (4x - 5)(x + 1) ???<br />
  4. 4. Factor 6x2 + 7x – 24 <br />(6x + 6)(x - 4) ???<br />(6x - 4)(x + 6) ???<br />(2x - 3)(3x + 8) ???<br />
  5. 5. Factor 4x2 - 12x - 7<br />
  6. 6. Factor 10x2 - 19x + 6<br />
  7. 7. Factor 2x2 + 3x + 5 <br />(2x + 5)(x + 5) ???<br />(2x + 5)(x + 1) ???<br />A polynomial that cannot be factored into polynomials of a lower degree is said to be an irreducible polynomial.<br />
  8. 8. Do p. 257 1-18<br />

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