(-5-square root -7)^2

(-5-square root(-7)*(-5-square root(-7)

-5*(-5-square root(-7)-square root(-7)*(-5-square root(-3))

multiplying out those terms gets:

combine like terms together

25+10*square root(-7)+(square root(-7))^2

simplify this further to get:

is that 10 times the square root of -7 ?

yes dear

(-5 - square root of -7)^2

i got 18 + 5sqrt(-7)

where did you get 5sqrt from dear?

Okay, i re did it...but i got 18+ 10 SR 7 not -7....

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