Question

-4x² + {(2x² - 3) - (4 - 3x²)}​

Answer 1

Answer:

x=1

Step-by-step explanation:

-4x2+{(2x2-3)-(4-3x2)}

-4x2+{2x2-3-4+9x2}

-4x2+(11x2-7)

-4x2+11x2-7

7x2-7

if 7x2-7=0

so, 7x2-7=0

7(x2-1)=0

x2-1=0

x2=1

x=1