Glutamic acid has pK values 2.2 (carboxyl group), 4.3 (acidic side chain) and 9.7 (amino group)…

Step 1. Glutamic acid. The neutral form lies between the two acid pK values, 2.2 and 4.3. So $\text{pI} = \dfrac{2.2 + 4.3}{2} = 3.25$.

Step 2. Histidine. The neutral form lies between the two basic pK values, 6.0 and 9.2. So $\text{pI} = \dfrac{6.0 + 9.2}{2} = 7.6$.

Step 3. The field. At pH 7.0 glutamic acid is above its pI, so it is negative and moves towards the positive electrode. Histidine is a little below its pI, so it is weakly positive and moves slowly towards the negative electrode.