"Education isn't everything. For a start, it isn't an elephant" Spike Milligan
1.(x+2)(x+5) =x²+2x+5x+10 =x²+7x+10Do the rest yourselves!
1.(x+2)(x+5)=x²+2x+5x+10=x²+7x+102.(x+4)(x+2)=x²+4x+2x+8.=x²+6x+8.3.(x+9)(x-2)=x²+9x-2x-18.=x²+7x-18.4.(x-4)(x+7)=x²-4x+7x-28.=x²+3x-28.5.(x-2)(x-6)=x²-2x-6x+12.=x²-8x+12.6.(x-4)(x-8)=x²-4x-8x+32.=x²-12x+32.7.(2x+4)(x+1)=2x²+4x+x+4.=2x²+5x+4.8.(x+3)(2x-1)=2x²+6x-x-3.=2x²+5x+3.9.(x+1)(x-1)=x²+x-x-1.=x²-1.10.(x+5)²=(x+5)(x+5).=x²+5x+5x+25.=x²+10x+25.By Elliot Orange
ElliotYou scored 8 out of 10. Two careless mistakes!I'm not posting your answers until Tuesday morning so that no-one can copy.
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3 comments:
1.(x+2)(x+5)
=x²+2x+5x+10
=x²+7x+10
Do the rest yourselves!
1.(x+2)(x+5)
=x²+2x+5x+10
=x²+7x+10
2.(x+4)(x+2)
=x²+4x+2x+8.
=x²+6x+8.
3.(x+9)(x-2)
=x²+9x-2x-18.
=x²+7x-18.
4.(x-4)(x+7)
=x²-4x+7x-28.
=x²+3x-28.
5.(x-2)(x-6)
=x²-2x-6x+12.
=x²-8x+12.
6.(x-4)(x-8)
=x²-4x-8x+32.
=x²-12x+32.
7.(2x+4)(x+1)
=2x²+4x+x+4.
=2x²+5x+4.
8.(x+3)(2x-1)
=2x²+6x-x-3.
=2x²+5x+3.
9.(x+1)(x-1)
=x²+x-x-1.
=x²-1.
10.(x+5)²
=(x+5)(x+5).
=x²+5x+5x+25.
=x²+10x+25.
By Elliot Orange
Elliot
You scored 8 out of 10. Two careless mistakes!
I'm not posting your answers until Tuesday morning so that no-one can copy.
Post a Comment