Solve the equation. $$\[ 15 x^{2}-2 x-8=0 \]$$ x=.................{ or } x= ....................

Mathematics

IGCSE&ALevel

CAIE

Exam No：0580_s21_qp_43 Year：2021 Question No：2(b)(ii)

Answer:

$\frac{4}{5}$ oe and $-\frac{2}{3}$ oe

E2.5.4 Derive and solve quadratic equations by factorisation, completing the square and by use of the formula.

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