Simplify the algebraic express and state the coefficient of x: -2( x – 3 ) + 4( -2x + 8)

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Find the value of 98 – {(15 ÷ 3) – (45 ÷ 15)} × 10 + 4

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9. Expand the expression (3m + 7n) ²

  Factorize the quadratic expression 3x² - 11x - 20  by splitting the middle term

  Factorize the quadratic expression 3x² - 11x - 20  by splitting the middle term

  Factorize the quadratic expression 3x² - 11x - 20  by splitting the middle term

  Factorize the quadratic expression 3x² - 11x - 20  by splitting the middle term

Factorize the following expressions:

(i)     16y² +xy -15x²

(ii)  4 - (3x - 1)²

15. Evaluate 99² - 1

12. Simplify the expression

5. Factorize the expression

4. Evaluate leaving your answer in radical form.

Factorize completely 2x² + x - 10 by splitting the middle term.

7.Without using mathematical tables, evaluate: