factorise 3 x square - 20 x y - 7 y square
Answers
Answered by
2
3x² -20x -7 =0
3x²- 21x + x -7=0
3x (x - 7) +1 (x - 7) =0
(x-7) (3x + 1) = 0
x = 7 or x = -1/3
Hope it helps ....(^^)
3x²- 21x + x -7=0
3x (x - 7) +1 (x - 7) =0
(x-7) (3x + 1) = 0
x = 7 or x = -1/3
Hope it helps ....(^^)
diya192:
there is misunderstanding
pleas solve my second also
x²-5√2x -12=0
x²-6√2+1√2-12=0
Sorry there is X after √2
x(x-6√2) +1√2 (x-6√2)=0
(x-6√2) ( x+1√2) =0
x=6√2 or x° -1√2
x=*
Hope it helps...
Similar questions