Question

Factorise: 5✓5x^2 + 30x+8✓5

Answer 1

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5√5x²+30x+8√5


Product of Number=(8√5)(5√5)
=40×5
=200



Then...

√5x² + 20x + 10x + 8√5

=) 5√5x² + 4 × 5x + (2√5 ) × √5 x + 2√5 × 4

= )5x ( √5x + 4 ) + ( 2√5 ) [ √5x + 4 ]

= )( √5x + 4 ) ( 5x + 2√5 )

Answer 2

This is quadratic equation ax^2+bx+c =5√5x^2+30x+8√5 =5√5x^2+(20+10)x+8√5 =5√5x^2+20x+10x+8√5 =5x(√5x+4x)+2√5(√5x+4x) =(√5x+4x)(5x+2√5)