Question

6. (-20) [{(-20) + (-15)} (4) – (8-9) (-10)]​

Answer 1

$\huge{\underline{\underline{\bf{\purple{answer}}}}}$

(-20) [{(-20) + (-15)} (4) – (8-9) (-10)]

=> ( -20 ) [{ -35 } 4 - ( -1 ) ( -10 )]

=> ( -20 ) [{ -35 } 4 ( - 10 )]

=> ( -20 ) [ -35 ( -40 )]

=> ( -20 ) [ 1400 ]

=> -28000

$\large{\underline{\underline{\bf{\purple{answer \: \: is \: - 28000}}}}}$