How do you subtract #(6x ^ { 2} + 5) - ( 9x ^ { 2} - 1) #?

1 Answer
sankarankalyanam
Apr 17, 2018

#color(purple)(-3x^2 + 6#

Explanation:

#(6x^2 + 5) - (9x^2 -1)#

#=>6x^2 + 5 - 9x^2 + 1, " removing the braces"#

#=>6x^2 - 9x^2 + 5 + 1, " rearranging like terms together"#

#=>x^2 (6 - 9) + (5 + 1), " combining like terms together"#

#=>x^2 * (-3) + 6, " simplifying"##

#=>color(purple)(-3x^2 + 6#

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