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ACTIVITY 1: LET'S PRACTICE!
Direction: Simplify the following expressions.

1. (x-3)(x + 10)
2. (x + 6) (x + 5)
3. (2x + 5)(2x – 7)
4. (3x - 8)(3x + 4)
5. (4ax + 7) (4ax + 5)​


Sagot :

Answer:

1. Factor 3x2 + 6x if possible. Look for monomial (single-term) factors first; 3 is a factor of both 3x2 and 6x and so is x ... (2x+A)(2x+B) = 4x2 + (2B+ 2A)x + AB. Trial and error gives the factorization 4x2 - 3x - 10 - (4x+5)(x- 2) . 4. ... 4. x3 + 2x2 - x - 2. 5. 4z2 + 42 - 8. 6. a2 + 3a + 2. 7. Simplify by factoring. 3x 2 + 3x - 18 numerator ...

Step-by-step explanation: