(ab - 9)(ab + 8) (answer)
Step 1: (ab-9)(ab+8) Step 2: ab x ab +8 x ab -9 x ab -9 x 8 Step 3: ab2 +8ab-9ab-72= Step 4: ab2 -ab-72 solved!!! that how you would solve it everything will continue as normal
Step 1: (ab-9)(ab+8) Step 2: ab x ab +8 x ab -9 x ab -9 x 8 Step 3: ab2 +8ab-9ab-72= Step 4: ab2 -ab-72 solved!!! that how you would solve it everything will continue as normal
-9x-13-9x=-31 Step 1: Add the 13 to where is the -31 to leave the x's alone like this: -9x-9x=-31+13 Step 2: Remember that when subtracting to negative numbers that the first negative stays the same while the minus sign changes to addition. Then second number has it's own negative sign...