1.

Factorise the following where possible 1. ax - 5a + 4x - 20 2. 12hy + 20h - 15 - 9y 3. 6az - 15z +5 - 2a 4. ax + bx + ay + by 5. ay + by - bz - az

Answer»

-STEP EXPLANATION:ANSWER is a(x-5)+4(x-5)(a+4)(x-5)



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