Question

x² +11x+10factorise​

Answer 1

Answer:

5x2 -10x = 5*x*x-2*5*x

= 5*x*(x-2)

=5x(x-2)

[Note for Example1: Write the factors of 5x2 -10x

Step (i): write the factors of each term

5x2 = 5*x*x

10x=2*5*x

Step (ii): Substitute the factors each term in the given expression.

5x2 -10x = 5*x*x-2*5*x

Step (iii): take the common factor outside the bracket.

5x2 -10x = 5*x*(x-2)

=5x(x-20)]

Answer 2

Answer:

x²+11x+10=0

x²+x+10x+10=0

x(x+1)+10(x+1)=0

(x+10)(x+1)=0

x+10=0 or x+1=0

x= -10 or x= -1

STAN KPOP IDOLS

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