Question

√5x² -7x +√20. Please answer I am waitiong

Answer 1

Answer:

(√5 - 2) ( x - √5)

Step-by-step explanation:

factorisation.....

P(x) = √5x² -7x +√2 [ √20 = √4 × √5 = 2√5 ]

= √5x² -7x + 2√5 [ 2√5 × √5 = 10 ]

= √5x² -5x - 2x + √20. [- 5 × -2 = 10 & -5-2 = -7 ]

= √5x ( x - √5 ) - 2 ( x - √5)

P(x) = (√5 - 2) ( x - √5)