Question

2a^2+18a+40 factorise​

Answer 1

Answer:

2(a + 4)(a + 5)

Step-by-step explanation:

2a² + 18a + 40 = 2(a² + 9a + 20) = 2(a + 4)(a + 5)

Answer 2

Answer:

IT'S 2a^2+ 18a + 40 = 0

2 (a^2+9a + 20) = 0

a^2 + 9a + 20 = 0

a^2 +( 5+4)a + 20 = 0

a^2 + 5a + 4a + 20 = 0

a (a+5) + 4 (a+5) =0

(a+5) ( a+4) = 0

a = -5 & a = -4.

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